The document describes Piaget's sensorimotor stage of child development which occurs from birth to 2 years. It is divided into 4 substages: (1) infants are born with reflexes that are important for survival; (2) newborns and infants begin to repeat actions regularly; (3) around 4-8 months, infants make connections between their actions and results from caregivers; (4) by 8-12 months, infants use prior learning to solve simple problems by combining actions.

1. Stage 1: Sensorimotor StageBirth to 2 yearsSubstage I: Practicing reflexes (birth to 1 month)What reflexes are infants born with?Why are these reflexes important?Substage II: Repeating new learnings (1 to 4 months)What actions do newborns and infants repeat on a regular basis?

2. Stage 1: Sensorimotor StageSubstage III: Beginning to control their world (4 to 8 months)A mental connection is made between action and results.Example: When an infant cries they realize a parent or caregiver will attend to them.What are other examples of an infant controlling their world through actions?

3. Stage 1: Sensorimotor StageSubstage IV: Applying learnings to solve complex problems (8 to 12 months)What has been learned up to this point is used to solve problems.Actions are combined to solve new problems.Example: A baby may push away an object to grasp a toy.What are examples of simple problems an infant can solve?