Child Development and Learning
Domain 1, Child Development and Learning, tests how you apply developmental science to children from birth through grade 3: developmental domains, major theorists, play, relationships, culture, and the line between variation and delay.
Milestones and the theories behind them
- Piaget: sensorimotor (0–2; object permanence late in year one), preoperational (2–7; symbolic play, egocentrism, animism, no conservation), concrete operational (7+).
- Vygotsky: learning is social. Teach inside the zone of proximal development, scaffold, then withdraw support; private speech is normal self-regulation.
- Erikson: trust vs. mistrust (infancy), autonomy vs. shame (toddler), initiative vs. guilt (preschool). Give safe choices and time for 'I do it myself.'
- Bronfenbrenner: nested systems - family, program, community, culture - shape development; home changes show up in class.
Play is the vehicle
Parten's sequence runs solitary, parallel (typical of toddlers), associative, cooperative. Functional, constructive, dramatic, and games-with-rules play carry language, self-regulation, and social learning.
Variation versus delay
Milestones are ranges. Refer, do not diagnose: no babbling by 12 months, no words by 16–18 months, no two-word phrases by 24 months, loss of skills, or no pointing or joint attention.
Worked example
A 4-year-old insists the tall narrow cup holds more water than the short wide one. She is centering on height and has not yet conserved - expected preoperational thinking. Correcting her verbally will not work; repeated pouring, measuring, and comparing experiences will. The move is experiential, not corrective.
Traps that cost marks
Calling parallel play antisocial; expecting conservation before 7; treating a screening score as a diagnosis; ignoring cultural norms around eye contact or independence; reading developmental behavior (biting, tantrums) as defiance.