Middle Childhood Development

Physical Development

Aspects of Physical Development
  • Height & Weight:

    • Girls generally retain more fatty tissue than boys.

  • Dental Health:

    • Tooth decay is a prevalent untreated condition.

    • Access to proper dental care is essential for children's health.

  • Nutrition:

    • Recommended daily caloric intake for children aged 9-13 ranges from 1,400 to 2,600 calories, varying with gender and activity level.

Physical Growth Table (Ages 6 to 11)

Age

Girls Height (inches)

Boys Height (inches)

Girls Weight (pounds)

Boys Weight (pounds)

6

46.8

46.8

52.3

52.6

7

48.9

49.7

60.2

61.0

8

51.1

52.0

69.1

69.8

9

53.9

53.5

76.9

78.1

10

56.3

55.8

90.6

89.8

11

59.2

58.8

106.1

102.6

Sleep
  • Average sleep required is about 10 hours daily.

  • Factors affecting sleep:

    • Exposure to media screens

    • Physical inactivity

    • Secondhand smoke

    • Poor housing and lack of recreational spaces

  • Persistent snoring may indicate sleep-disordered breathing, affecting behavior and learning.

Brain Development
  • Improvements in information processing and focus.

  • Gray matter volume increases pre-puberty and declines post-puberty due to density loss.

  • Girls typically experience peak gray matter volume 1-2 years earlier than boys, while white matter increases steadily.

Motor Skills & Physical Activity
  • Motor skills continue evolving with more complex games during recess:

    • Boys engage in running and rough play.

    • Girls prefer games that involve verbal skills and counting.

    • Younger children (6-9 years) benefit from flexible play rules and additional practice opportunities.

Body Image and Obesity
  • Body image perceptions emerge prominently, particularly in girls, potentially leading to eating disorders.

  • Factors contributing to obesity include:

    • Overweight family members

    • Poor nutrition, particularly fast food consumption

    • Sedentary lifestyle.

Chronic vs Acute Medical Conditions
  • Acute Conditions: Short-term issues like infections.

  • Chronic Conditions: Conditions lasting over 3 months (e.g., asthma, diabetes).

    • Asthma: Allergy-based, leads to coughing and wheezing, can stem from genetic and environmental factors.

    • Diabetes: High blood glucose levels; Type 1 involves insulin deficiency, while Type 2 relates to insulin resistance.

    • Hypertension: High blood pressure that correlates with learning disabilities.

Cognitive Development

Cognitive Advances in Middle Childhood
  • Spatial Concepts: Understanding maps, navigating environments.

  • Causality: Ability to make cause-and-effect judgments.

  • Categorization:

    • Seriation: Arranging objects in a specific order.

    • Transitive Inferences: Understanding relationships among different objects.

    • Class Inclusion: Understanding the relationship between a whole and its parts.

Inductive and Deductive Reasoning
  • Inductive Reasoning: Drawing broad conclusions from specific observations.

  • Deductive Reasoning: Applying general principles to specific cases.

  • Conservation: Grasping that objects remain identical despite changes in appearance.

Information Processing

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  • Planning, Attention, and Memory:

    • Executive function development allows better concentration, selective attention, and error monitoring.

    • Increased working memory capacity during middle childhood.

    • Memory improvement strategies:

    • Rehearsal laws

    • Organization

    • Elaboration

    • Mnemonic devices

Psychometric Approaches & Intelligence
  • Common Intelligence Tests:

    • Wechsler Intelligence Scale for Children (WISC-IV)

    • Otis-Lennon School Ability Test

    • Kaufman Assessment Battery for Children (K-ABC-II)

  • Critique of Intelligence Tests:

    • Some argue IQ tests may undermine understanding of cognitive abilities in certain health conditions.

Multiple Intelligence and Triarchic Theory
  • Howard Gardner's Theory of Multiple Intelligences: Encompasses linguistic, logical-mathematical, musical, etc.

  • Robert Sternberg's Triarchic Theory:

    • Analytic intelligence: Problem-solving and information processing.

    • Creative intelligence: Using experience to approach new situations.

    • Practical intelligence: Daily life adaptability and decision-making.

Language & Literacy

  • Increased verbal precision including the use of similes and metaphors.

  • Sentence structures become more complex over time.

  • Different communication styles view variations between genders; boys are often more direct, while girls are more polite.

Psychosocial Development

Development of Self
  • Formation of a more complex self-concept, integrating various self-aspects.

  • Comparison between real self and ideal self shapes self-esteem.

Industry vs. Inferiority (Erikson)
  • Central Conflict: Children strive to gain competencies leading to either confidence or feelings of inferiority.

  • Key Virtue: Competence enhances a child’s confidence.

  • Influencing Factors: Teachers and peers significantly impact children's feelings of industry.

Emotional & Social Understanding
  • Increased awareness of own and others' emotions.

  • Development of emotional self-regulation promotes empathy and pro-social behaviors.

Child in the Family
  • Coregulation: Balance of power between parents and children.

  • Autonomy impacts a child's relationship with parents.

  • Exposure to family conflict leads to various emotional responses, affecting behavior positively or negatively.

Peer Relationships
  • Peer interaction fosters self-efficacy and social skills.

  • Children are influenced by social structures and nominations from peers (positive and negative).

  • Understanding aggression types:

    • Instrumental Aggression: Goal-directed.

    • Hostile Aggression: aimed to harm others.

Mental Health Issues
  • Various childhood mental health challenges such as anxiety disorders, oppositional defiance, and conduct disorders.

  • Resilience can be nurtured through supportive relationships and healthy cognitive functioning.

Moral Development Stages (Kohlberg)
  1. Pre-conventional: Decisions based on rewards and punishments.

  2. Conventional: Adhering to societal standards.

  3. Post-conventional: Principles guide moral reasoning and behavior.

  • Social Conventional Reasoning: Focus on agreed rules to uphold society.

  • Moral Personality: Characteristics that encompass moral identity, character, and exemplars.