Infancy (0-1 year)
Toddlerhood (1-3 years)
Preschool (3-5 years)
School Age (6-12 years)
Adolescence (13-18 years)
100

A way that infants communicate their needs and feelings. 

Crying. 

100

A common term for the desire for independence. 

Autonomy. 

100

A stage of play that involves children actively engaging with each other and sharing. 

Cooperative play. 

100

The development of a sense of competence and confidence in abilities. 

Competence. 

100

A period of physical changes that lead to maturity. 

Puberty. 

200

The ability to reach for a toy is? Hint:movements that coordinate with vision. 

Hand-eye coordination.

200

The ability to understand and use language.

Language acquisition. 

200

A type of play where children make up things that don't exist. 

Imaginary play. 

200

Friendships become more complex during this stage,sharing interests and loyalty. 

Peer Friendships. 

200

Piaget's cognitive stage is characterized by abstract thought,logical reasoning, and hypothetical thinking. 

Formal Operational stage. 

300

Piaget's first stage of cognitive development.

Sensorimotor stage. 

300

A common discipline approach for toddlers where they are briefly removed from a stimulating environment. 

Time-out. 

300

A rapid growth in vocabulary and sentence structure. 

Language development. 

300

The ability to think logically about events to order objects.

Concrete Operational stage. 

300

Erikson's psychosocial stage for adolescents, focused on developing a sense of self/personal identity. 

Identity vs. Role confusion. 

400

The strong emotional bond that forms between an infant and their primary caregiver. 

Attachment. 

400

A type of play where children play alongside each other but don't interact directly. 

Parallel play.

400

Erikson's psychosocial stage for preschoolers.Learning to initiate activities and assert control.

Initiative vs.Guilt.

400

The understanding that quantity remains the same despite the change in appearances. 

Conservation. 

400

This term describes the tendency for adolescents to feel that they are constantly being watched or judged by others. 

Imaginary audience. 

500

The development of a sense of self. 

Self-awareness. 

500

The process of learning to control body functions,urination and defecation. 

Toilet training.

500

The ability to understand that objects still exist even when they cannot be seen. 

Object permanence. 

500

The child's understanding of right and wrong. 

Moral development.

500

The exploration of commitment in beliefs,values,and life goals. 

Identity formation/exploration. 

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