Growth & Development: Toddlers (1–3 years)
Biological Development
1. Proportional Growth
Parameter | Description |
Weight | Gains about 4–6 lbs/year |
Birth weight | Quadruples by age 2.5 years |
Height | Grows about 3 inches/year |
Head Circumference | Equal to chest circumference by 1–2 years |
Increases slowly: 0.5–1 inch/year | |
Chest Circumference | Exceeds head circumference after 2 years |
Abdominal Circumference | Becomes smaller than chest after age 2 |
Fontanel Closure | Anterior fontanel closes between 12–18 months |
2. Sensory Developmenot
Vision:
20/40 vision is acceptable
Continues to improve; depth perception developing
Strabismus (crossed eyes) may be noticeable and should be evaluated
Hearing, Smell, Taste, Touch:
All senses are well developed
Toddlers explore environment and food with senses
Taste preferences begin; they may prefer familiar flavors
3. Maturation of Systems
Neurological:
Brain growth slows, but still developing
Myelination of spinal cord mostly complete by 2 years
Respiratory:
Upper respiratory infections common
Short Eustachian tubes = more ear infections
Gastrointestinal:
Voluntary control of elimination begins (potty training readiness around 18–24 months)
Immune System:
Continues to mature; fewer infections over time
Skin:
Better thermoregulation than infants
Endocrine:
Hormone regulation maturing, but still developing
4. Gross Motor Development
Age | Milestones |
12–15 months | Walks alone, creeps upstairs |
18 months | Runs (clumsily), throws ball overhand |
2 years | Walks up/down stairs one step at a time |
2.5 years | Jumps using both feet, stands on one foot |
5. Fine Motor Development
Age | Milestones |
12–15 months | Feeds self with cup/spoon, scribbles |
18 months | Builds tower of 3–4 blocks |
2 years | Turns doorknob, unscrews lids |
2.5 years | Draws circle, holds crayon with fingers (not fist) |
Toddler Development (1–3 years)
Psychosocial Development — Erik Erikson
Stage: Autonomy vs. Shame and Doubt
Aspect | Explanation |
Core Theme | Toddlers are striving for independence and control. |
Key Behavior | Toddlers love to say “NO” – asserting control and self-will. |
Autonomy | Gained when caregivers encourage independence and allow safe exploration. Examples: picking clothes, self-feeding, toilet training. |
Shame & Doubt | Develops when caregivers are overly critical, controlling, or impatient, making the child feel incapable. Outcome: low confidence, reluctance to try new things. |
Famous Toddler Phrase | “Me do it!” – shows desire to do tasks independently. |
Tip to Remember:
Support, not shame = self-confidence
Control everything for them = self-doubt
Cognitive Development — Jean Piaget
Transition: Sensorimotor → Preoperational Stage
1. Sensorimotor (Final Substages)
Age Range: 12–24 months
Substage | Age | Characteristics |
Tertiary Circular Reactions | 12–18 months | Trial and error exploration. Tries out actions to see effects (e.g., dropping toys repeatedly). |
Mental Representation | 18–24 months | Starts using symbols and images in their mind. Begins pretend play and problem solving mentally rather than physically. |
2. Preoperational Stage (Begins ~2 years)
Substage: Preconceptual Phase (2–4 years)
Feature | Description |
Egocentrism | Child sees the world only from their own perspective. Example: If they’re upset, they assume everyone is upset. |
Symbolic Thinking | Begins to use words and objects to represent something else. Example: a stick becomes a sword in play. |
Language Explosion | Vocabulary rapidly increases. Language becomes a tool for thinking and controlling behavior. |
Imagination | Begins imaginative play and story-telling, but still struggles with logic and rules. |
Magical Thinking | Believes their thoughts can cause things to happen. Example: “I was mad, and now you’re hurt—it’s my fault.” |
How it all connects:
Psychosocial (Erikson): “I want to do it myself” = autonomy
Cognitive (Piaget): “I think the world is all about me” = egocentrism
Social Development of Toddlers (1–3 Years)
1. Attachment & Language
Attachment
Phase | Description |
Separation | Toddler begins to understand they are separate from parents. This is often marked by separation anxiety. |
Individuation | Toddler develops own identity, preferences, and independence. |
Example: Toddler wants to do things alone — “Me do it!” — but still seeks comfort from parent.
Language Development
Age Milestones | Language Abilities |
15 months | Understands simple commands; uses 4–6 words |
18 months | 10–20 words; understands more than they can say |
24 months | Vocabulary explodes to ~300 words |
By 36 months (3 years) | Combines 2–3 words into phrases (e.g., “want juice”) |
Key Concepts:
Comprehension always precedes speech.
Uses gestures + words to communicate.
May label body parts, emotions, toys.
Language develops rapidly, especially with encouragement and conversation.
2. Personal-Social Behavior
Age | Milestones |
15 months | Feeds self with fingers, drinks from cup, removes shoes/socks |
24 months | Uses spoon effectively |
36 months | Begins using fork |
2–3 years | Helps with simple chores, removes clothing, starts toilet training readiness |
Other Traits:
Strong-willed, easily frustrated
Affectionate: hugs/kisses parents, pictures, screens (e.g., FaceTime)
Growing independence in hygiene, dressing, and feeding
3. Play
Type of Play:
Parallel Play (hallmark of toddlerhood):
Plays next to but not directly with other children.
No cooperation or shared goals.
Example: Two toddlers playing with blocks side-by-side but not talking to each other.
Functions of Play:
Cognitive, social, emotional, and physical development
Practice of real-life activities (e.g., feeding a doll, talking on toy phone)
Common Toys:
Toy Type | Description & Example |
Push/Pull Toys | Encourage walking, coordination Example: Pull-along duck, toddler vacuum |
Ride-on Toys | Enhance balance and movement Example: Toddler tricycle |
Imitative Toys | Mirror adult behaviors Example: Kitchen sets, doctor kits |
Toy Safety Tips:
Age-appropriate
No small parts that can cause choking
Sturdy and well-maintained
4. Body Image & Sexual Development
Sexual Development
Begins early (curiosity-driven)
May touch genitals — often due to normal sensations like needing to pee or itching
Not sexual in the adult sense — it’s about exploring and awareness
Body Image
Toddlers begin identifying body parts
Important to teach accurate names in a calm, age-appropriate way
Learn that bodies have differences (e.g., boys vs. girls)
Caregivers should respond to questions honestly but simply
Teaching Tip: Avoid shaming — teach in a positive, factual way. “That’s your penis. Everyone has body parts, and we take care of them.”
Coping with the Toddler (1–3 Years)
1. Toilet Training
Area | Key Points |
Order of Control | Bowel control comes before bladder control |
Nighttime Control | May not be achieved until age 4–5 years |
Accidents | Daytime accidents are common and normal |
Curiosity | Toddlers may watch adults/siblings and show interest in their habits |
Discomfort Awareness | Shows discomfort with wet/soiled diapers – a sign of readiness |
Readiness Signs for Toilet Training
Type | Indicators |
Physical Readiness | Voluntary control of urine/bowel Stays dry at least 2 hours Can undress self (fine motor skills) |
Mental Readiness | Recognizes urge to go Can communicate the need |
Psychological Readiness | Wants to please parents Can sit 5–8 minutes on toilet |
Parental Readiness | Parents recognize the child’s cues Willing to invest time and patience |
2. Temper Tantrums
Aspect | Details |
Purpose | Toddlers release frustration or tension |
Common Signs | Breath-holding, kicking, screaming |
Triggers | Illness, hunger, tiredness, overstimulation, frustration |
Duration | Usually lasts 5 minutes or less |
How to Handle:
Ignore behavior — no reaction
Ensure safety — prevent self-harm
Remain calm — do not reward tantrums with attention
3. Sibling Rivalry
Issue | Description |
Natural jealousy | Especially when a new sibling arrives |
Routine disruption | Changes in attention and daily structure cause stress |
Merging families | Adjusting to step-siblings or new family dynamics can lead to resentment |
Tips:
Involve toddler in caring for the baby
Maintain the toddler’s routine
Offer one-on-one time
4. Negativism
Behavior | Explanation |
“No” to everything | Asserting independence and control |
Common phase | Peaks in toddlerhood |
How to Manage:
Offer two choices (e.g., “Do you want the red shirt or the blue shirt?”)
Minimize questions that allow for a “no” answer
Keep routines predictable
Stay calm and reassuring
Give limited control options
5. Stress in Toddlers
Key Concepts | Notes |
Some stress is healthy | Helps child learn coping skills |
Too much stress | Overwhelms their limited ability to cope |
Best management | Prevention – remove or reduce known stressors |
Activity management | Do not over-schedule – allow free play and rest |
6. Regression
Definition | Description |
Regression | Return to earlier behavior (e.g., bedwetting, baby talk) when stressed or overwhelmed |
Common triggers | New sibling, big changes, illness |
Why it happens | Child seeks comfort and security |
Caregiver role | Be patient and supportive – it’s a normal step before moving forward developmentally |
7. Fears in Toddlers
Typical Fears | Notes |
Darkness, loud noises, separation from parents | Part of normal development |
Imagination increasing | Can cause irrational fears (monsters, etc.) |
Caregiver approach | Offer comfort, not ridicule Normalize feelings and ensure safety |
Health Promotion of the Toddler (1–3 Years)
1. Nutrition
Topic | Details |
Milk | Whole milk until age 2 (for brain development) Limit to 2–3 cups/day |
Appetite | Physiologic anorexia – natural drop in appetite due to slower growth rate |
Eating Habits | Toddlers are picky and fussy Encourage exploration of food (texture, temperature, smell) Allow messy eating to promote sensory learning |
Food Choices | Influenced by appearance, color, texture more than taste |
Portion Size | Easily overwhelmed by large servings — offer small portions |
Tips for Healthy Eating |
|
2. Sleep and Activity
Topic | Details |
Total Sleep | 10–13 hours per day, including naps |
Naps | Usually 1 nap/day, which fades by 3–4 years |
Bedtime Problems | May resist bedtime or wake at night |
Helpful Strategies | Use bedtime rituals (e.g., bath, story) and allow transitional objects (e.g., blanket, teddy bear) for comfort |
3. Dental Health
Topic | Guidelines |
First Dental Visit | Around 12–15 months (after first teeth erupt) |
Oral Hygiene | Parents brush toddler’s teeth twice daily with a pea-sized amount of fluoride toothpaste |
Preventing Cavities (Caries) |
Avoid juice-filled sippy cups and bottle propping at night
Offer water at bedtime
Limit juice intake throughout the day
Fluoride rinses NOT recommended for children under 6 years |
4. Injury Prevention
Toddlers are curious, mobile, and unaware of danger — constant supervision is key!
Risk | Prevention Tips |
Choking | Avoid hard/round foods (grapes, nuts), supervise during meals |
Suffocation | Keep small objects and plastic bags out of reach |
Motor Vehicle Accidents (MVA) | Use rear-facing car seat until at least 2 years or until height/weight limit reached |
Falls | Use safety gates, supervise on stairs and furniture |
Bodily Injury | Keep sharp/fragile objects out of reach, pad furniture edges |
Drowning | Never leave toddler unattended near bathtubs, pools, or toilets |
Burns | Keep hot objects and liquids out of reach, use stove guards |
Poisoning |
Lock away medications and cleaning supplies
Use child-proof locks and high storage
Never refer to medicine as “candy”
Preschooler Development (3–5 Years)
Focus:
Proportional Growth, Gross Motor, and Fine Motor Skills
1. Proportional Growth
Weight Gain
Age | Average Weight | Weight Gain per Year |
3 years | ~32 lbs | 4.5–6.5 lbs/year |
4 years | ~36.5 lbs | ↑ |
5 years | ~43 lbs | ↑ |
Height Gain
Also increases about 2.5–3.5 inches/year
Growth is steady but slower than in toddlerhood
Body proportions become more adult-like (longer limbs, less belly protrusion)
2. Gross Motor Development
Age | Milestones |
3 years |
Walks, runs, climbs, jumps confidently
Rides a tricycle
Tiptoes, balances on one foot for a few seconds |
| 4 years |
Skips and hops well on one foot
Catches a ball reliably |
| 5 years |
Skips on alternate feet
Jumps rope
Begins learning to skate and swim |
Note: These skills help prepare them for group sports and physical games by age 4–5.
3. Fine Motor Development
Age | Skills |
3 years |
Copies a circle
Imitates vertical and horizontal lines
Holds crayon/pencil with fingers
Scribbles part of name |
| 4 years |
Traces simple shapes
Builds tower of 9–10 blocks
Constructs bridges (basic spatial reasoning)
Laces shoes (but may not tie yet)
Uses scissors
Drops small items into narrow containers (refined hand-eye coordination) |
| 5 years |
Uses writing/drawing tools well
Draws more detailed shapes and figures (e.g., basic person, house)
Writes some letters or name clearly
4. Combination of Gross + Fine Motor
Preschoolers (4–5 years) show increased coordination:
Can start participating in sports or team games
Engage in group creative tasks (e.g., art projects, building together)
Develop both physical confidence and social cooperation
Preschool Development (3–5 Years)
Focus:
Psychosocial & Cognitive Development
1. Psychosocial Development – Erik Erikson
Stage: Initiative vs. Guilt (Ages 3–6)
Aspect | Explanation |
Core Theme | Preschoolers want to try new things, make decisions, and lead activities. They begin to take initiative. |
Initiative | - Child feels confident to explore, plan, and take action |
They try to help, lead games, ask many questions
Encouraged when adults support curiosity and do not shame mistakes |
| Guilt | - Develops if efforts are constantly criticized or restricted
The child may feel embarrassed or wrong for trying new things
Leads to hesitancy, fear of failure |
Superego Development (Conscience)
Around this age, children develop a sense of right and wrong
Influenced by parental approval/disapproval
Beginning of moral awareness
Examples:
A child “cooks” a fake meal and serves it proudly = Initiative
A child is scolded for spilling during pretend play and stops playing = Guilt
Child tells on a peer for “being bad” = Superego forming
2. Cognitive Development – Jean Piaget
Stage: Preoperational (2–7 years)
Preschoolers are in the preconceptual phase (ages 2–4) and moving toward intuitive thought phase (ages 4–7)
Key Features:
Concept | Description | Example |
Development | Preschoolers are developing mental readiness for school and more structured learning. Their thinking is still egocentric and symbolic, but more complex than toddlers. | Begins to understand time-related ideas (today, tomorrow), starts storytelling |
Causality | Thinks in terms of cause and effect, but not always logically. It resembles logic, but lacks accuracy. | “It rained because I spilled water” |
Magical Thinking | Believes thoughts can cause events. They cannot yet separate reality from imagination. | “I got sick because I was mad at mom” or “Monsters come out if I don’t clean up” |
Additional Features of Pre-operational Thinking:
Egocentrism: Sees things only from their own perspective.
Animism: Believes inanimate objects have feelings (“The chair is sad”).
Transductive reasoning: Connects unrelated events in illogical ways.
Centration: Focuses on one aspect of a situation at a time (e.g., only the height of a glass, not the width).
Key Teaching Tip for Nurses/Parents:
Use simple explanations, visual aids, and reassurance to help preschoolers understand health or procedures, since their thinking is still based on perception and imagination, not logic.
Social Development of the Preschooler (Ages 3–5)
1. Attachment
Preschoolers are becoming more emotionally secure and independent.
Developmental Features | Explanation |
Individuation-Separation | This process is complete — child sees self as separate from parents. |
Brief Separations | Tolerates being away from parents (e.g., preschool, playdates). |
Routine Flexibility | Can adapt to minor changes in daily routine. |
Comfort Objects | Gains security from familiar items like toys, blankets, dolls. These aid emotional regulation and comfort. |
2. Language Development
Language is the primary tool for learning, interaction, and emotional expression.
Age | Language Milestones |
3–4 years | - Uses 3–4 word sentences - Speech is telegraphic (short, essential words only) - Asks many questions |
4–5 years | - Uses 4–5 word sentences - Questioning is at its peak (“Why? What?”) |
5 years | - Vocabulary reaches ~2,100 words - Can follow complex instructions |
6 years | - Uses correct grammar and parts of speech - Can identify opposites and use comparative words |
Key Behavior: Talks constantly, asks endless questions, and narrates play.
3. Personal-Social Behavior
Preschoolers are growing in independence, self-awareness, and social cooperation.
Age | Behaviors |
3 years | - Self-assertive; may test boundaries - May say “I do it!” often |
4–5 years | - Needs little help with eating, dressing, toileting - Can understand and obey simple safety rules |
5 years | - Begins to care for self independently - Knows how to call 911 - Understands their role within the family unit |
Theme: Social, cooperative, likes to please adults, but still wants control over small decisions.
4. Play
Play is critical to learning and development in preschoolers. It reflects their growing imagination, social skills, and motor abilities.
Type of Play | Description |
3 years | Parallel Play: Plays alongside peers but doesn’t interact directly. |
4–5 years | Associative Play: Plays with others, shares materials, but may not follow common rules. |
Play Characteristics:
Promotes Motor Skills: Running, jumping, climbing, etc.
Imaginative & Dramatic: Pretend play, dress-up, role play (e.g., doctor, superhero).
Imitative: Mimics real-life roles (e.g., parent, teacher).
Imaginary Friends: Normal and healthy; helps with emotional expression and social practice.
Toys: Dress-up dolls, farm sets, kitchen tools, puppets.
Media Use: Limit screen time; ensure parental supervision of content.
Sharing: Begins to understand the concept of sharing, but may still resist it.
5. Body Image & Sexual Development
Preschoolers develop a growing awareness of their own bodies and differences among people.
Body Image
Concept | Examples |
Physical Awareness | Notices differences in size, skin color, race |
Fear of Bodily Harm | May believe they’ll “leak” if they’re injured — very literal thinking |
Appearance Awareness | Likes to dress up, show off clothing or hairstyles |
Sexual Development
Behavior | Meaning |
Sex Role Identity | May prefer toys/clothes typical of their gender but also explore others |
Sexual Exploration | Normal curiosity about body parts; may touch genitals or ask questions |
Understanding Body | Begins to name and understand body parts and differences between boys and girls |
Parental Role: Stay calm, use correct terms, and give simple explanations. Avoid shame or punishment.
Coping with the Preschooler (3–5 Years)
1. School Experience
Preschool is a key step in developing social, emotional, and academic readiness.
Key Aspects:
Concept | Explanation |
Group Cooperation | Learns to take turns, share, follow group instructions |
Peer Group Experience | Builds friendships, learns social rules |
Academic Readiness | Recognizes letters, numbers, routines, and classroom structure |
5 R’s of Early Brain & Child Development (AAP Recommended):
R | What it Supports |
Read | Develops literacy and language skills |
Rhyme | Enhances memory and phonemic awareness |
Routines | Builds predictability and security |
Reward | Encourages positive behavior |
Relationships | Foundation of emotional and cognitive development |
Goal: Support a child’s confidence and curiosity as they enter structured learning environments.
2. Sex Education
Guidelines | Notes |
Ask First | Find out what the child already knows and how they understand it. |
Honesty | Always be truthful but age-appropriate. |
Normalize | Sexuality includes identity, relationships, and respect — not just anatomy. |
Avoid Shame | Respond with calmness and clarity to questions or behaviors (e.g., touching genitals). |
3. Aggression
Aggression can be normal or problematic, depending on context and frequency.
Type | Description |
Definition | Behavior intended to hurt a person or destroy property. |
Causes | - Frustration (e.g., can’t express feelings well) |
Modeling (imitating aggressive adults/peers)
Reinforcement (aggression is rewarded or ignored) |
| Management | - Address root cause (e.g., frustration, modeling)
Seek parenting support or professional help if persistent/aggressive behaviors escalate |
4. Speech Problems
Speech development is rapid in preschool years, but some problems are common.
Disorder | Description |
Stuttering (Developmental) | Common from ages 2–5; often resolves on its own |
Dyslalia | Articulation problems (e.g., mispronouncing sounds like “wabbit” for “rabbit”) |
When to Refer | If speech issues persist past 5, or interfere with social/academic performance, refer for evaluation/screening |
5. Stress and Fears
Preschoolers experience emotional stress, often tied to growing independence and social exposure.
Signs of Stress (by Age):
Age | Common Stressors/Behaviors |
3 years | - Stubbornness |
Possessiveness (belongings)
Jealousy
Separation anxiety
Mealtime/Naptime battles
Destructive behavior |
| 4 years | - Insecurity
Desire for companionship
Exploration of sex/gender roles
Activity overload
Fearfulness
Craving attention |
| 5 years | - Desire for approval
School-related worries
Tendency to procrastinate
Possessiveness over items
Engaging in name-calling
Increased worrying |
Management Strategies:
Tool | Benefit |
Parental education | Helps caregivers recognize and respond appropriately to signs of stress |
Relaxation techniques | Teach simple deep breathing, visualization, guided imagery |
Routine | Maintain predictable schedules for meals, naps, and play |
Encouragement | Promote expression of feelings through talking, drawing, or play |
Health Promotion of the Preschooler (3–5 Years)
1. Nutrition
Key Points | Explanation |
Juice | Continue to limit juice intake (max ~4–6 oz/day). Water is preferred. |
Food Fads | Preschoolers may insist on eating only one type of food (e.g., only chicken nuggets or only white foods). This is normal and temporary. |
Mealtime as Social Time | Encourage family meals to promote conversation, manners, and healthy habits. Avoid screen time during meals. |
Tip: Keep offering a variety of foods even if rejected at first—exposure leads to acceptance.
2. Sleep and Activity
Topic | Details |
Total Sleep | Preschoolers need about 10–13 hours of sleep per night. Most no longer nap. |
Sleep Problems |
Nightmares: Frightening dreams that wake the child (child is alert, may remember).
Example: A child wakes up crying after dreaming about monsters.
Night Terrors: Occur in deep sleep, child may scream, thrash, appear awake but is not fully conscious (won’t remember the event).
Example: A child sits up screaming and sweating but doesn’t respond when called. |
| Sleep Rituals | Establish a consistent bedtime routine: bath, story, cuddle time. Helps ease transitions and reduce sleep anxiety. |
3. Dental Health
Topic | Recommendations |
Tooth Eruption | All 20 primary (baby) teeth have typically erupted by preschool age. |
Brushing | Preschoolers still need adult help with brushing—encourage them to try but supervise for thoroughness. |
Professional Care | Schedule regular dental visits (every 6 months). Fluoride treatments/supplements as needed. |
Avoid Cavities | Limit sugary snacks/juices and teach mouth rinsing after meals if brushing isn’t possible. |
4. Injury and Safety Prevention
Preschoolers are active, imaginative, and often unaware of real dangers.
Key Risk Areas and Examples:
Risk | Example or Strategy |
Magical Thinking | Preschoolers may imitate dangerous behaviors they see in cartoons/TV due to poor understanding of consequences. |
Example: Jumping off furniture like a superhero, thinking they can fly. | |
Imaginary Friends | May blame accidents on imaginary friends. Use these moments to gently teach responsibility. |
Motor Vehicle Accidents (MVA) | Use a forward-facing car seat with a harness until they outgrow the limits, then switch to a booster. Always ride in the back seat. |
Playground Safety | Supervise at all times. Use age-appropriate equipment with soft ground surfaces. Teach to wait turns, no pushing. |
Personal Safety/911 | Teach the concept of 911: what it is, when to use it, and how to say full name and address. |
Example: “If mommy is on the floor and not waking up, call 911.” |
Growth and Development: School-Age Child (6–12 Years)
1. Biological Development
Proportional Growth
Parameter | Details |
Height | Grows about 2 inches per year |
Weight | Gains about 4.5–6.5 lbs per year |
Teeth | - First permanent teeth erupt around age 6 |
May begin orthodontic evaluation if needed |
| Sleep | Needs about 10–12 hours per night |
| Gender Differences | Girls grow faster than boys during this stage (typically begin puberty earlier) |
2. Maturation of Body Systems
Gastrointestinal (GI) System
Improved glucose regulation
Caloric needs remain high, but appetite may decrease slightly compared to earlier years
Renal System
Bladder capacity increases
Improved control over urination and elimination
Cardiovascular System
Heart growth slows but continues steadily
Vital signs stabilize to near-adult ranges:
Heart rate and respiratory rate decrease
Blood pressure increases slightly
Immune System
Gains greater competence and memory response
Fewer infections compared to toddler/preschool age
Musculoskeletal System
Bones grow longer and stronger
Mineralization of bones increases (calcium important)
Growth spurts may lead to awkward movements or “growing pains”
Sexual Maturity
Gender | Timing |
Girls | Puberty typically begins around age 12 |
Boys | Puberty typically begins around age 15 |
Preadolescence | Begins in late school-age years |
Period of transition (no fixed age)
Appearance of some secondary sex characteristics (e.g., breast budding in girls, testicular enlargement in boys)
Highly variable — age of onset differs significantly by child |
Note: There is no universal age to assume full sexual maturity characteristics — development is highly individual.
Psychosocial & Cognitive Development: School-Age Child (6–12 Years)
1. Psychosocial Development – Erik Erikson
Stage: Industry vs. Inferiority
Concept | Explanation |
Industry |
The child begins to feel a sense of accomplishment through schoolwork, sports, art, and friendships.
Wants to learn, produce, and succeed.
Enjoys completing tasks and receiving praise or recognition.
Gains confidence when encouraged to set and reach goals.
Example: Child feels proud after learning to ride a bike or finishing a science project.
| Inferiority |
Develops when the child fails to achieve success or is overly criticized, especially by adults or peers.
May feel incompetent, doubt abilities, or withdraw from challenges.
Example: A child who constantly hears “you’re not good at this” may stop trying altogether.
Goal for Caregivers: Encourage effort and celebrate small achievements, not just outcomes.
2. Cognitive Development – Jean Piaget
Stage: Concrete Operational (Ages ~7–11)
Concept | Explanation |
Concrete Thinking | Children now use logical thought processes and can reason through concrete problems. |
Conceptual Thinking | Able to make decisions based on reasoning, not just what they see. |
Example: Understands that if you pour the same amount of water into a tall glass, it still has the same volume. |
| Understanding Relationships | Recognizes cause and effect, sequencing, and classification.
Can categorize objects, understand time and space, and grasp simple math operations. |
| Perspective-Taking | Starts to understand others’ feelings and viewpoints (decreased egocentrism).
Important for developing empathy and building friendships. |
Educational Tip: School-age children are ready for hands-on learning, experiments, and tasks with clear steps and explanations.
Social Development: School-Age Child (6–12 Years)
1. Developing a Self-Concept
Concept | Description |
Self-Concept | A child’s conscious awareness of their abilities, values, and appearance. |
Formed through feedback from parents, teachers, and peers. | |
A positive self-concept leads to confidence, motivation, and emotional well-being. |
Example: A child who hears “You’re good at drawing” may develop confidence in their creative skills.
2. Body Image
Concept | Notes |
General Trend | As children grow older, they tend to like their physical selves less. |
Influences | Strongly shaped by opinions of significant others, especially peers and family. |
Awareness of Differences | May lead to feelings of inferiority if they notice they don’t “match” others (e.g., height, weight, race, ability). |
Nurse Tip: Promote body positivity and focus on health rather than appearance.
3. Sexual Development
Nurse’s Role in Sexual Education:
Responsibility | Explanation |
Normalize | Reinforce that sexuality is a normal part of development |
Differentiate | Help children understand differences between appropriate vs inappropriate behavior |
Teach Values | Support the family in teaching their values about relationships and sexuality |
Problem Solving | Guide children in how to handle uncomfortable or unsafe situations |
Sex Education Guidelines:
Respect natural curiosity at this age
School-age years are an ideal time to start formal sex education
Emphasize lifespan education — not a one-time “talk”
Teach correct terms, boundaries, consent, and self-respect
4. Play
School-age children’s play is more structured, skill-based, and social.
Type of Play | Characteristics |
Rules and Rituals | Follow rules carefully; like games with clear structure (e.g., board games, tag) |
Team Sports | Enjoy competition, teamwork, and organized sports |
Quiet Activities | Reading, puzzles, building models, and crafts are also enjoyed |
Clubs and Groups | Join extracurricular activities (e.g., Scouts, after-school programs) |
Ego Mastery | Play allows them to practice skills, build confidence, and work through emotions |
Practice and Commitment | Capable of practicing skills to improve performance (e.g., music, sports, art) |
Social Enjoyment | Prefer activities done with others — friends become more important |
Summary: School-age play promotes physical development, cognitive growth, social skills, and emotional regulation.
Health Promotion: School-Age Child (6–12 Years)
1. Nutrition
Topic | Key Points |
Growth Needs | Growth slows compared to early childhood; caloric needs decrease. |
Balanced Diet | Encourage all food groups: fruits, vegetables, grains, protein, and dairy. |
Eating Habits | - May still be picky, but more open to trying new foods |
Appetite more stable and predictable |
| Fast Food | High risk of excess calories, fat, and sodium. Encourage home-cooked meals and portion awareness. |
Tip: Teach the importance of nutrient-rich foods to support bone growth and immunity (e.g., calcium, iron, protein).
2. Sleep and Rest
Age | Average Nighttime Sleep |
5 years | ~11.5 hours per night |
11 years | ~9 hours per night |
General Average | ~9.5 hours per night across school age |
Key Sleep Behaviors:
Sleep needs are individualized and may vary
Ages 8–11 may resist bedtime (want independence, busy schedules)
By 12 years, children become less resistant to bedtime as routines are established
Tip: Maintain consistent routines and reduce screen time before bed.
3. Injury Prevention
School-age children are more active, curious, and take greater risks, often without fully understanding consequences.
Why Injuries Occur:
Factor | Explanation |
Less fear | May not fully understand danger; enjoy imitating adults or TV characters using real tools or household items |
Risk-taking | Enjoy speed, tricks, and competitive activities, often pushing limits |
Common Risks & Prevention Tips:
Activity | Risk | Prevention |
Motor Vehicle Accidents (MVA) | Injury as passenger or pedestrian | Use booster seats until seatbelt fits properly; teach road safety |
ATVs | High-speed crashes, rollovers | Not recommended for young children; always supervise and use helmets |
Bicycles | Falls, collisions | Wear helmets, follow traffic rules, supervise younger children |
Skateboards & Scooters | Falls, fractures | Require helmets, pads, and safe riding areas away from cars |
Nurse/Parent Role: Teach safety skills, use protective equipment, and model safe behavior.
Adolescent Development (Ages 11–20)
Biological Development
1. Stages of Adolescence
Stage | Age Range | Key Features |
Early Adolescence | 11–14 years | - Onset of puberty - Emotional response to body changes - Growing self-awareness |
Middle Adolescence | 15–17 years | - Strong peer influence - Preoccupied with appearance, popularity, fashion - Risk-taking increases |
Late Adolescence | 18–20 years | - Transition into adulthood - Focus on career, relationships, independence |
2. Neuroendocrine Regulation of Puberty
Factor | Description |
Trigger | Initiated by the hypothalamus, which stimulates the anterior pituitary to release hormones (FSH, LH) |
Main Hormones | - LH & FSH activate the gonads - Ovaries (females): estrogen & progesterone - Testes (males): testosterone |
Result | Maturation of reproductive organs, development of secondary sex characteristics, and growth spurts |
3. Puberty: Sexual Maturation
Onset:
Girls: 9–13.5 years
Boys: 9.5–14 years
Highly individualized — influenced by genetics, nutrition, health, and environment.
First Signs of Puberty:
Gender | First Indicator |
Girls | Breast development (thelarche) |
Boys | Testicular enlargement |
4. Tanner Stages of Sexual Maturity (SMR)
Tanner Stages describe the progression of puberty in both boys and girls. There are 5 stages for breasts, genitals, and pubic hair.
Girls – Tanner Stages: Breast Development (Thelarche)
Stage | Description |
Stage 1 | Prepubertal – no breast tissue |
Stage 2 | Breast bud forms; small mound; areola enlarges |
Stage 3 | Breast and areola enlarge, but still in one mound |
Stage 4 | Areola and nipple form a secondary mound above breast |
Stage 5 | Mature adult breast contour |
Girls – Pubic Hair
Stage | Description |
Stage 1 | None |
Stage 2 | Sparse, light-colored, straight hair on labia |
Stage 3 | Darker, coarser hair spreads across mons pubis |
Stage 4 | Adult-like hair, but smaller area |
Stage 5 | Adult pattern – hair spreads to inner thighs |
Boys – Tanner Stages: Genital Development
Stage | Description |
Stage 1 | Prepubertal – no pubic hair; childlike genitalia |
Stage 2 | Testes and scrotum enlarge; skin reddens; slight hair at base |
Stage 3 | Penis grows in length, scrotum further enlarges |
Stage 4 | Penis grows in length and width, development of glans; darker scrotum |
Stage 5 | Adult size and shape of genitalia |
Boys – Pubic Hair
(Same as girls in terms of stages)
5. Adolescent Growth
Category | Girls | Boys |
Lean Body Mass | Peaks at menarche | Increases early in puberty |
Fat Mass | Increases before and after menarche | Decreases at time of growth spurt |
Peak Height Velocity (PHV) | ~12 years (6–12 months before menarche) | ~14 years, after testicular and pubic hair growth |
Peak Weight Gain | ~6 months after PHV | Occurs with height spurt |
Linear Growth | Begins early puberty | Begins mid-puberty |
6. Body System Maturation
Respiratory System
Increased lung size and vital capacity
Boys may experience voice deepening due to laryngeal changes
Cardiovascular System
Heart size and strength increase
Blood pressure increases (SBP)
Resting heart rate decreases
Neurological System
Ongoing brain development, especially frontal lobe (judgment, decision-making)
Emotional control still developing — contributes to risk-taking
7. Motor Skills
Type | Development |
Gross Motor | Skills are well-developed; increased strength, speed, and endurance |
Fine Motor | Excellent control for writing, instruments, and precision tasks |
Coordination | May vary temporarily during growth spurts; improves in late adolescence |
Adolescent Development (11–20 Years)
Psychosocial & Cognitive Development
1. Psychosocial Development – Erik Erikson
Stage: Identity vs. Role Confusion
Concept | Explanation |
Core Conflict | Adolescents seek to answer “Who am I?” and explore their sense of self. |
Success | Leads to a strong sense of identity: self-knowledge, direction, and emotional maturity. |
Failure | Results in role confusion — uncertainty about one’s place in society, beliefs, and goals. |
Phases of Identity Formation
Stage | Key Features |
Early Adolescence (11–14) |
Puberty begins
Changes in self-concept due to body image and comparison with peers
Mood swings, fantasy life, daydreaming common
Needs clear limits and consistent structure
Example: Feels insecure about body changes and needs reassurance.
| Middle Adolescence (15–17) |
Begins separating from parents emotionally
Defines personal values, beliefs, strengths, and weaknesses
Identifies more with peer group than family
Example: Starts exploring different social groups or activities to “find their tribe.”
| Late Adolescence (18–20) |
Gains greater independence
Chooses career/vocation
Develops own morality separate from parents
Achieves a clear identity and may form mature relationships
Example: Applies to college, identifies life goals, forms serious romantic partnerships.
2. Cognitive Development – Jean Piaget
Stage: Formal Operational Thought (Begins ~11 years)
Concept | Explanation |
Abstract Thinking | Adolescents can think beyond the “here and now.” They grasp concepts, theories, and ideas not directly experienced. |
Hypothetical Reasoning | Can consider “what if” scenarios and explore possibilities. |
Scientific Reasoning | Able to use formal logic and test ideas methodically (e.g., solving algebra, conducting experiments). |
Decision-Making | Can weigh consequences of actions, but impulsivity may still affect choices. They may not always apply logical thinking to real-life situations. |
Enjoys Intellect | Takes pride in learning, problem-solving, and debating. |
Comprehensive View | Can understand multiple perspectives, idealism, and the “big picture.” |
Example: A teen may understand global issues, form opinions on social justice, but still make impulsive personal decisions.
Adolescent Development (11–20 Years)
Social Development & Health Promotion
1. Social Development: Play & Recreation
Area | Key Features |
Play & Activities | Play becomes more structured, competitive, and peer-oriented. |
Games & Sports | Adolescents enjoy organized athletics, games with rules, and competitive events. |
Hobbies & Interests | Participate in sports, reading, music, parties, video games, crafts, volunteering. |
Peer Influence | Peers are a central social force—influence appearance, behavior, and identity. |
2. Technology as a Social Environment
Role of Tech | Explanation |
Virtual Communities | Social media, gaming, and online forums allow teens to form and join virtual peer groups. |
Identity Exploration | Adolescents experiment with roles and identities online—sometimes more freely than in person. |
Multitasking | Frequently use multiple devices (e.g., texting, scrolling, and watching videos all at once). |
Anonymity | Online presence can feel less risky, but may also lead to risky behavior or inappropriate communication. |
Risks of Technology Use:
Cyberbullying: Harassment through social media or messaging
Online predators
Distraction while driving (texting, using apps)
Mental health impacts: Anxiety, self-esteem issues from social comparison
Nurse Tip: Teach digital safety, responsible posting, and healthy screen limits.
3. Health Concerns in Adolescence
Adolescence is a critical period for developing long-term health habits and addressing emerging risks.
Concern | Notes |
Sexual Behavior | Risk of STIs, pregnancy—education and access to contraception are crucial. |
Body Image | Concerns about appearance can lead to tanning, body art, or disordered eating. |
Substance Use | High risk for tobacco, vaping, alcohol, marijuana use. |
Mental Health | Watch for depression, anxiety, suicidal thoughts—especially with bullying or stress. |
Peer Pressure | Impacts decision-making in drugs, sex, behavior. |
Learning Issues | May emerge or intensify; can affect self-esteem and academic progress. |
Chronic Disease | Asthma, diabetes, epilepsy may impact social and physical activities. |
4. Health Promotion: Nutrition & Injury Prevention
Nutrition
Focus | Notes |
Teaching Tools | Use MyPlate or food pyramid to guide choices |
Key Nutrients | Calcium and protein needed for bone growth and muscle mass |
Risks of Poor Nutrition | Can lead to delayed growth, delayed puberty, and poor academic performance |
Common Issues | Skipping meals, eating disorders, excessive fast food/sugar intake |
Injury Prevention
Adolescents are natural risk-takers due to incomplete brain development (frontal lobe). Common injuries can be intentional or unintentional.
Risk | Examples |
Driving | Distracted driving, no seatbelt, speeding |
Drowning | Risk increases with unsupervised swimming or alcohol use |
Burns | Playing with fire, fireworks, or unsafe cooking |
Poisoning | Alcohol, drugs, overdose |
Bodily Harm | Fights, self-harm, risky stunts or dares |
Nurse/Parent Role: Encourage open communication, model healthy behaviors, and provide nonjudgmental guidance.
Health Promotion & Common Pediatric/Adolescent Health Conditions
1. Skin Conditions
Scabies
Cause: Female mite burrows into skin, lays eggs & feces.
Symptoms:
Intense pruritus, especially at night
Inflamed lesions, excoriations
Symptoms appear 30–60 days post-exposure
Treatment:
Topical:
Permethrin 5% cream (apply neck-down, repeat in 1 week)
Lindane (less preferred due to neurotoxicity)
Oral:
Ivermectin (if >15 kg)
Nursing Considerations (List)
Treat all close contacts
Wash bedding/clothing in hot water
Bag unwashable items for 72+ hours
Keep nails short (prevent reinfection)
Apply meds as prescribed, avoid face/eyes unless directed
Educate on itching continuing after treatment (from inflammation, not live mites)
Pediculosis Capitis (Head Lice)
Common in school-age children
Lice live 48 hours off scalp; females live 30 days
Nits (eggs) laid at base of hair shaft
Hatch in 7–10 days
Treatment:
Pediculicides (permethrin 1%)
Manual nit removal
Treat environment (wash items, vacuum)
Recheck hair in 7–10 days
2. Elimination Disorders
Enuresis (Bedwetting)
Definition: Urinating in bed twice/week for ≥3 months after age 5
Types:
Primary: never had nighttime dryness
Secondary: returns after being dry
Nocturnal: night
Diurnal: day
Causes:
Organic: UTI, structural defects, diabetes, sickle cell, small bladder
Psychological: stress, trauma
Evaluation:
Physical exam
Bladder diary
Psych eval if stress suspected
Management:
Conditioning therapy (enuresis alarms)
Bladder training
Medications:
Tricyclic antidepressants (Imipramine)
DDAVP (desmopressin)
Antispasmodics
Just wait it out method (maturity resolves it)
Encopresis (Fecal Soiling)
Definition: Soiling 1x/month for 3+ months in child ≥4 years
More common in boys
Often follows stress, constipation, impaction
Symptoms:
Abdominal pain, nausea, decreased appetite
Palpable fecal mass
Soiling with strong odor, social withdrawal
Management:
Rule out organic causes
Psychotherapy
Dietary changes (high fiber)
Fecal evacuation: laxatives, enemas
Stool softeners
Bowel training
3. Acne Vulgaris
Affects >50% of adolescents
Causes:
Genetic
Hormonal (puberty-related)
Diet, hygiene, stress
Psych Impact: self-esteem issues
Patho:
Involves hair follicles + sebaceous glands
Formation of comedones (blackheads/whiteheads)
Treatment:
General skin care
Topical retinoids, benzoyl peroxide, antibiotics
Oral antibiotics, isotretinoin for severe cases
Nursing Considerations:
Educate about long-term therapy
Avoid harsh scrubbing
Encourage psych support
4. Reproductive Health
Male Concerns
Condition | Description | Treatment |
Testicular Tumors | Usually malignant; rare but serious | Testicular Self Exam (TSE) monthly |
Varicocele | Asymptomatic enlarged scrotal vein | Varicocelectomy if painful |
Epididymitis | Inflammation; STD-related or trauma | Rest, antibiotics, scrotal support |
Testicular Torsion | Surgical emergency; acute pain | Requires immediate surgery |
Gynecomastia | Breast tissue in boys | Usually benign and resolves; may be drug-induced |
Female Concerns
Condition | Notes |
Menstrual Disorders | Primary amenorrhea (no menses by 15), Secondary (absence after established) |
Dysmenorrhea | Painful menses — often hormonal |
Endometriosis | Endometrial tissue outside uterus; causes pain, infertility |
PMS, DUB | Premenstrual syndrome; Dysfunctional uterine bleeding |
Treatment | Varies: hormonal therapy, NSAIDs, surgery (endometriosis) |
Nursing | Supportive care, education on normal vs abnormal symptoms |
5. Sleep Problems in Toddlers/Preschoolers
Issue | Notes |
Problems | Trouble falling/staying asleep, nightmares, night terrors |
Nightmares | Occur in REM, child awakens frightened and remembers dream |
Night Terrors | Occur in deep sleep, child may scream, thrash, appear awake but not conscious |
Media Use | Screens before bed delay sleep onset |
Cultural Considerations | Co-sleeping may affect independence, sleep habits |
Consequences | Behavioral issues, irritability, poor concentration, stunted growth (if chronic) |
Communicable Diseases in Children
1. Varicella (Chickenpox)
Causative Agent: Varicella-Zoster Virus (Herpesvirus)
Transmission: Contact & droplet precautions
Incubation Period: 2–3 weeks (usually 14–16 days)
Period of Communicability:
1 day before lesions erupt until all lesions are crusted over
Symptoms:
Macule → papule → vesicle → crust
Itchy rash, fever, malaise, loss of appetite
Nursing Considerations:
Isolate infected child
Provide skin care – keep skin clean/dry
Change linens daily
Keep child cool – avoid overheating
Apply pressure instead of scratching (to avoid secondary infection)
Keep nails trimmed and consider mittens if child scratches
2. Fifth Disease (Erythema Infectiosum)
Causative Agent: Human Parvovirus B19
Transmission: Respiratory secretions, blood
Incubation Period: ~4–14 days
Rash Stages:
“Slapped cheek” facial redness (fades in 1–4 days)
Maculopapular rash on arms/legs (proximal → distal) for 1+ week
Rash reappears with heat, trauma, irritation
Treatment:
Supportive care: antipyretics, analgesics
No isolation necessary once rash appears
Special Precautions:
Pregnant women exposed during 1st trimester have a low risk of fetal complications (e.g., hydrops fetalis) — advise medical follow-up
3. Exanthem Subitum (Roseola Infantum)
Causative Agent: Human Herpesvirus Type 6 (HHV-6)
Common Age: 6 months–3 years
Presentation
Sudden high fever (can trigger febrile seizures)
Fever drops abruptly → rash appears
Rash begins on trunk, spreads to face and extremities
Non-pruritic, pink macules or maculopapules
Treatment:
Supportive care only
Antipyretics for fever
Encourage fluids and rest
4. Scarlet Fever
Causative Agent: Group A beta-hemolytic Streptococcus (GABHS)
Incubation Period: 2–4 days (range 1–7 days)
Period of Communicability:
During incubation and until 24–48 hours after starting antibiotics
Symptoms:
High fever, headache, vomiting, abdominal pain, malaise
“Strawberry tongue” (white coating sloughs off to red, swollen papillae)
Enlarged tonsils, may be covered with exudate
Bright red pharynx
Rash (Exanthema):
Appears within 12 hours of prodrome
Feels like sandpaper, starts in groin, axilla, neck, then spreads
Desquamation (peeling) of hands/feet occurs during recovery
Treatment:
Antibiotics (usually penicillin or amoxicillin)
Bedrest, fluids, analgesics during febrile phase
Follow-up for throat culture or repeat evaluation
Complications:
System | Complication |
ENT | Otitis media, sinusitis, peritonsillar abscess |
Renal | Acute glomerulonephritis |
Cardiac | Rheumatic fever (inflammatory damage to heart valves) |
CNS | Meningitis, chorea (movement disorder linked to rheumatic fever) |
Prevention: Early treatment of strep throat reduces complication risk
Non-Vaccine Communicable Diseases & Related Health Condition
1. Conjunctivitis (“Pink Eye”)
Type | Notes |
Etiology | Viral, bacterial, allergic, foreign body |
Contagious? | Only bacterial type is contagious |
Symptoms | Itching, burning, redness, eyelid edema, discharge, scratchy feeling |
Nursing Care:
Infection control: hand hygiene, no school for 24 hrs after antibiotic starts
Wipe secretions inner canthus → outward, away from unaffected eye
Follow medication regimen exactly
2. Aphthous Stomatitis (Canker Sores)
Benign, but painful oral ulcers
Onset often triggered by trauma or stress
Duration: 4–12 days
3. Herpetic Gingivostomatitis (HSV-1)
Type | Characteristics |
Primary | Fever, red/edematous pharynx, vesicles in mouth, cervical lymphadenitis |
Duration: 5–14 days |
| Recurrent | Cold sores on lips
Triggered by stress, trauma, or sunlight |
4. Stomatitis – General Management
Pain management: topical anesthetics, antihistamines
Encourage soft foods, use of straws
Monitor for dehydration
Prevent autoinoculation (spreading to eyes or genitals)
5. Intestinal Parasites
Giardiasis
Most common intestinal parasite
Spread via fecal-oral route (daycare, water, animals)
Symptoms: Diarrhea, cramps, vomiting, anorexia, FTT, loose stools alternating with constipation
Diagnosis:
Stool samples (x3)
EIA, ELISA, DFA
Treatment:
Flagyl (metronidazole)
Furoxone (furazolidone)
Albenza (albendazole)
Pinworms (Enterobiasis)
Category | Notes |
Transmission | Fecal-oral, thrives in crowded settings |
Symptoms | Intense perianal itching, especially at night |
Diagnosis | Tape test (AM before bathing/toileting) |
Treatment | Vermox (mebendazole) for all family; repeat in 2–3 weeks |
6. Ingestions & Poisoning
High-Risk Household Items
Medications | Non-Medications |
Analgesics, vitamins, cough/cold meds, diphenoxylate (Lomotil) | Bengay, Vicks, Orajel, cosmetics, pesticides, art supplies, cleaning products |
Treatment Principles:
Treat the child, not the poison
Stop exposure
Identify substance
Prevent absorption
Interventions:
Method | Notes |
Gastric lavage | For life-threatening cases; short time window |
Activated charcoal | Binds toxins in GI tract (excreted in stool) |
Cathartics | Sorbitol, magnesium citrate/sulfate—monitor fluid status |
Antidotes: |
Mucomyst (acetaminophen)
Naloxone (opioids)
Digibind (digoxin)
Flumazenil (benzodiazepines)
Education:
Call Poison Control (before home treatments)
Prevention: cabinet locks, childproofing, proper labeling
7. Lead Poisoning
Pathophysiology:
Lead is stored in bones, teeth, brain, liver, and erythrocytes
Affects:
Hematologic system (anemia)
Renal system
CNS (neurotoxicity, behavioral problems, ↓ IQ)
Screening & Diagnosis:
Capillary BLL for screening only
Venous blood draw for confirmation
Universal screening at 1–2 years old
BLL ≥10 mcg/dL: clinical concern
BLL ≥20: requires environmental investigation
BLL ≥45: needs chelation therapy
Chelation Therapy:
Agent | Notes |
Succimer (Chemet) | Oral, bead-filled capsules |
Dosing: 10 mg/kg TID for 5 days → BID for 14 days |
| EDTA (Calcium disodium EDTA) | IV/IM; used with BAL if BLL >70 |
| BAL (Dimercaprol) | Deep IM, not for use with peanut allergy or G6PD deficiency |
| Rebound effect | Stored lead can re-enter bloodstream after chelation |
Nursing Education:
Anticipatory guidance, follow-up, environmental control
Education about hidden sources of lead (paint, toys, soil)