Very useful. The educational concept here is to "teach you how to accompany your baby with high quality", which means that Xiao Bu pays special attention to parent-child interaction. Small-step parent-child games are particularly interesting, taking local materials, which can not only help children learn skills, but also enhance emotional communication between mother and child. Last night, Mao Mao and I played with buttons of various colors and shapes for over an hour. I'm so happy.