Just walking 12–18 months · Carrying, posting, emptying and filling

• A basket of real things 51
• Household objects to handle 54

First words 18–24 months · Naming, pointing, early pretend

• A basket of real things 51
• Household objects to handle 54

Two 24–36 months · Pretend play proper, turn-taking, big feelings

• Household objects to handle 54