What you want to ask is: "If my child doesn't study and only has a junior high school education, can I teach myself the math class in Senior Two and Senior One?" If the children don't study and only have junior high school education, I can teach myself a math class in senior two and senior one. It is ok for parents to teach themselves junior high school mathematics knowledge and then help their children, without violating any laws and regulations. However, if parents teach themselves junior high school mathematics and then want to tutor their children, it is best to make preparations in advance and clarify the relationship between primary school mathematics and junior high school mathematics before tutoring their children. Therefore, children do not study, only junior high school education level. I can teach myself the math class in Grade Two and Grade One.