Xue Jinxing's How to Solve Problems is easy to use in high school. Xue Jinxing's teaching materials are the best-selling tutoring materials, because they contain a lot of detailed explanations of words, sentences and paragraphs, as well as the translation of classical Chinese and the steps and ideas to solve scientific problems, so they are very easy to use. It has been welcomed by teachers and students all over the country for many years. According to relevant data, the share of "complete textbook solutions" in primary and junior high schools is quite high. In underdeveloped areas, many teachers use complete textbooks to improve their teaching plans.