My son, three years old, when l togethered with him,l often taught him some numbers ?and round, triangle,square,diamond,some easy figures. Day and day, he remebered.

In fact, the things you ?taught,the world it is. his world is being by numbers and round,triangle,square, diamond. ?when he saw telephone number he can recgnize them.when he saw figures on the picture, he can say "mom,it is triangle, and it is square…".To some extent,l feel proud of my son when he said something like this.