Age Milestone Concern
36 months Expresses a range of emotions using a variety of strategies Displays persistent challenging behaviors (tantrums, screaming, aggression) when upset, frustrated, or sad
Takes turns in games with peers; will share with adult support Rarely plays near or with other children; refuses to take turns or share with friends
40 months Increasingly independent with self-care routines (washing hands, getting dressed, brushing teeth) 完成自我保健只有重要的例程adult support and prompts; displays difficulty transitioning between daily routines
Starting to engage in pretend and role play with other children (e.g., you be the mom and I’ll be the baby) Rarely engages in pretend play with or without peers
48 months Cooperates and shares experiences with other children (e.g., works together toward the same goal, such as building a tall building together or making a sand castle together) Plays with other children only with significant adult support; shows no interest in interactive games with peers
Independently negotiates solutions to conflicts with other children Displays persistent challenging behaviors (tantrums, screaming, aggression) when upset (e.g., with a change in routine or activity)
60 months Identifies his or her friends by name, and tries to please and act like friends Is extremely aggressive or shy around other children outside of family
Persists and completes difficult or lengthy tasks Is easily distracted and gets frustrated with difficult tasks