Composition doesn't need such training. It is good to take children to experience life, let them record interesting things, and then induce them to be interested in writing. Not a format. Show him more interesting books. It is interesting to recommend Yang's book to him. When I was in primary school, I gradually became interested in composition and made progress. Interest comes first. Instead of letting children go to interest classes, it is better to take them for a walk and experience life, which will be more touching.