Kevinka san, Konnichiwa. Japanese children learn easy kanji first for example, 一、大、小 and so on. They already know the meaning so they just need to memorize knaji. They have to write them many times. Cover, write and check… It should be every day’s homework and students have to take tests almost every week. Japanese primary school teachers are strict about the marking. As you can see the middle line has a hook in 小. If kanji which you write doesn’t have a hook properly, you can’t get the mark.