Ch. 7

Growth and Development in Early Childhood

  • Growth occurs at a slower pace than during infancy.

  • There is a linear relationship between motor activity levels and age, which peaks around ages 7-9.

Physical and Cognitive Development in Early Childhood (Ages 2-6)

Overview

  • Transformation occurs from toddler to child ready for school.

Physical Changes:

Motor Skills
  • Steady motor development allows for greater independence.

  • Fine motor skills are not yet skilled; they require significant concentration.

Developmental Strategies
  • "Wait and see" strategy for skill development is not ideal.

  • Early training in motor skills can accelerate acquisition timelines but does not alter the learning sequence.

Brain Development
  • Brain growth, synapse formation, and myelination continue but at a slower rate.

  • Lateralization refers to the division of brain functions between the two hemispheres of the cerebral cortex.

  • The timeline for these changes is genetically predetermined.

  • The corpus callosum, which connects the two hemispheres, experiences significant growth during early childhood.

  • The reticular formation plays a role in motor control, and the hippocampus is key for memory formation.

Health Considerations
  • Handedness is influenced by genetics; statistics around left vs. right-handedness have not changed significantly over time.

  • Preschool children have a higher frequency of illness due to increased social interactions.

  • Recommended sleep for ages 3-5 is 10-13 hours per night.

  • Food aversions often develop during preschool years, linked to genetic profiles and predispositions.

Interplay between Physical and Cognitive Development

  • Physical skills can be performed but may not be executed well; they require significant focus.

  • Development is interactive, where training in physical skills aids cognitive training and vice versa.

Health Promotion and Wellness

  • Increased sickness in children is associated with more interactions in daycare settings.

  • Well-baby check-ups continue but are less frequent during early childhood.

Sleep Patterns
  • Sleep problems are common; identifying them early is important to prevent negative consequences.

Nutrition and Physical Health

  • Canadian children consume excessive sugar, with 25% of their daily intake coming from sugar.

  • An increase in obesogenic environments (settings conducive to obesity) is influenced by social factors and context.

  • There is a correlation between excessive screen time and learning delays, with a recommendation to limit preschoolers' screen time to less than 1 hour per day.

Injury Prevention
  • Unintentional injuries are a leading cause of death among Canadian children aged 1-4, accounting for approximately 20% of deaths.

  • Over 90% of childhood injuries are preventable, with more than 50% occurring at home.

Cognitive Skills Development
  • The development of the semiotic function is crucial for using symbols in thinking and communication, which enables logical thinking processes.

  • Egocentrism and centration may impair logical reasoning, illustrated by the conservation concept where a child misconstrues the volume of liquids in differently-shaped containers.

Cognitive Development: Piaget's View

Preoperational Stage

  • Characterized by the ability to use signs, symbols, and images to represent objects, actions, or ideas not physically present.

  • Pretend play using objects is not limited to any specific culture and is a universal phenomenon.

Challenges to Piaget’s View
  • Younger children can solve simpler problems before age 5, such as understanding concepts one at a time.

  • Emotional regulation is notable in preschoolers, who adapt their emotional expressions based on context and expectations.

Perspective Taking and Theory of Mind

Understanding Others

  • By ages 2-3, children can begin to adapt their speech and play to their companion.

  • Development of a theory of mind includes understanding that people's beliefs and desires might differ from one's own; this typically emerges around age 4.

Reciprocity and Inference
  • From ages 5 to 7, reciprocal thinking allows for sensitivity to others' feelings and judgments.

  • By age 6, children start realizing knowledge can be derived through inference, showing various cognitive correlations.

Cognitive Development: Vygotsky’s Sociocultural Theory

  • Problem-solving is a socially generated and learned process, where social interaction plays a pivotal role in cognitive growth.

  • Children learn new words by creating mental