Preschool (3–6 yrs) Growth & Development Summary

Physical Growth
  • Growth pattern from 33–66 years is slow & steady
    • Average weight gain: 2 kg per year2 \text{ kg per year}
    • Average height gain: 6!–!8 cm per year6!–!8 \text{ cm per year}
  • Changing body proportions
    • Limbs and trunk elongate ⇒ posture becomes progressively upright
Gross-Motor Development
  • By end of toddlerhood: core skills (walking, running, climbing, jumping) are already present
  • Preschool period focuses on refinement
    • 3!–!43!–!4 yrs: marked improvements in balance & coordination
    • Can stand on one foot
    • Can hop proficiently
    • 4!–!54!–!5 yrs: competent in complex skills
    • Swimming
    • Skating
    • Bicycle riding
Fine-Motor Development
  • Continues to become more precise
    • By 4!–!54!–!5 yrs:
    • Can dress/undress solo (may need help with complicated fasteners)
    • Able to copy simple shapes (crosses, squares)
    • Can write own name
Language Development
  • Rapid vocabulary expansion
    • ≈900\approx900 words at 33 yrs
    • >2000 words at 66 yrs
  • Preschoolers talk incessantly – “stream-of-consciousness” even when no listener is present
  • Continuous questioning reflects both linguistic competence & cognitive curiosity
Cognitive Development (Piaget – Pre-operational Stage)
  • Symbolic Function
    • Objects stand for other objects during play
    • Blocks become “cars,” Play-Doh becomes “food” for a teddy bear
  • Intuitive rather than logical thinking
    • Child guesses relationships; explanations may lack logical structure
  • Magical Thinking
    • Thoughts/wishes believed to influence reality ("thinking makes it happen")
    • Used to fill knowledge gaps → can produce faulty causal beliefs
    • Example: child assumes Santa “brought” an illness because the sickness started at Christmas
  • Temporal (time) comprehension tied to personal context
    • Abstract terms (afternoon) grasped only when linked to routines ("after lunch")
    • Counting “sleeps until Christmas” supplies a concrete metric
  • Egocentrism persists
    • World understood chiefly from the child’s own perspective
Psychosocial Development (Erikson – Initiative vs. Guilt)
  • Focus shifts from autonomy to initiative – the capacity to plan & act
  • Key vehicles: play & imagination
    • Freedom to self-direct play → reinforces initiative → cultivates a sense of purpose
  • If caretakers stifle or ridicule self-initiated activity → child experiences guilt; feels personal efforts are embarrassing or wrong
Moral Development (Kohlberg – Pre-conventional Level, Stage 2)
  • Transition (~44 yrs) from “Punishment-and-Obedience” to “Instrumental–Relativist” orientation
    • Cooperation pursued for personal gain: “I’ll share so you’ll share with me.”
    • Concepts of fairness, sharing, turn-taking emerge but are tied to reciprocity rather than abstract morality
Practical / Clinical Implications
  • Health-care & child-care professionals must appreciate:
    • Children might self-blame for illness due to magical thinking (“I was naughty, so I got sick”).
    • Explanations should be concrete, tied to daily routines, and corrected for faulty causal links.
    • Encouragement of imaginative play aids psychosocial growth; unnecessary restriction may impair sense of purpose.
Integrative Take-Home Points
  • Motor: Refinement phase → improved balance, coordination, and complex skills.
  • Language/Cognition: Explosive vocabulary growth; thinking remains intuitive & magical.
  • Psychosocial: Self-initiated imaginative play builds initiative; suppression produces guilt.
  • Moral: Behavior guided by reciprocity & tangible rewards, not yet by internalized ethics.
Numerical & Statistical References (All quoted from lecture)
  • Average yearly weight gain: 2 kg2 \text{ kg}
  • Average yearly height gain: 6!–!8 cm6!–!8 \text{ cm}
  • Vocabulary: ≈900\approx900 words (age 33); >2000 words (age 66)
Theoretical Links & Foundations
  • Piaget’s Pre-operational stage explains symbolic & magical thinking.
  • Erikson’s Initiative vs. Guilt underscores need for autonomy in play.
  • Kohlberg’s Stage 2 (Instrumental-Relativist) frames morality as “You scratch my back, I’ll scratch yours.”
Real-World/Clinical Examples Recapped
  • Blocks = cars; Play-Doh = food.
  • Child attributes illness to Santa’s Christmas visit.
  • Using “after lunch” or “two more sleeps” to teach time concepts.
Ethical & Practical Relevance
  • Recognizing magical thinking prevents inadvertent reinforcement of self-blame in hospitalized children.
  • Structured opportunities for imaginative play are ethically important for fostering healthy psychosocial development.