Developmental Milestones Checklist: What changes should you expect as your child grows?
This milestone chart can help you check your child's development against common milestones.
Two and a half years
Testing boundaries. Children at this age are likely to insist on completing tasks without help. Expect to hear words and phrases such as "mine," "no," and "me do it." At the same time, they are becoming more social and may play more cooperatively with others.
Check the box on each line that mentions at least two activities your child is doing, then click Tell me more.