Object Permanence Box vs Peekaboo: What’s the Difference?
Object Permanence Box vs Peekaboo: What’s the Difference? | HA Baby BABY DEVELOPMENT COMPARISON Object Permanence Box vs Peekaboo: What’s the Difference? You hide your face behind your hands and say, “Where’s Mama?” Your baby laughs when you appear again. Later, your baby puts a ball into a box and watches it disappear through a […]