Yes, I am a high school teacher. What I recommend to my classmates is "Once in High School", a star education mathematics. This book from basic to comprehensive, from easy to difficult, conforms to the basic logic of students learning new knowledge. Moreover, many of the questions are typical, and the training effect is better. For students with weak foundation, it is suggested to do more test questions in the study area and then practice in the comprehensive area, where there will be college entrance examination questions and simulation questions. Students in our class especially like this booklet, which focuses on explanations. Students with poor foundation can understand the knowledge points thoroughly. I wonder if you are satisfied with my answer?