At the age of 3, his painting form belongs to the graffiti stage. At this stage, children often use circles to represent the objects they want to express, which is a very important critical period. The normal time for children to receive formal art education should be after 8-9 years old. At this time, the angle of children's observation of things is close to that of adults, and it is more appropriate to learn painting skills at this time. Before the age of 9, children are in the stage of "feeling realism". At this time, they drew what they thought. Children express their ideas and tell their feelings and discoveries through painting. If children are taught to learn adult painting skills too early, after all, children are too young to understand theoretical knowledge, which may hinder their creative enthusiasm and is not conducive to the cultivation of imagination.
I suggest you buy your child some graffiti books for drawing. He can draw whatever he wants on them, because what he draws is what he wants to express, which is beyond adults' understanding. This is to cultivate children's ability and imagination to observe and imitate sketches, let them imitate the paintings in the album, and also to cultivate children's ability to draw with lines, let them learn basic coloring skills, and encourage them to use colors boldly. Children can do it by themselves at home without professional training. Because I am an American teacher, this one has more say. )
I hope it helps you.