This is a set of practice problem booklets, lecture booklets, and commentary sheets from the Teru-ryokukai (a prestigious Japanese cram school) for high school third-year science students, covering the mathematics curriculum equivalent to Math IA and IIB, from the 1st to the 16th sessions. Each practice session consists of four problems, all of which are carefully selected high-quality problems from entrance exams of top universities. Lecture notes have been taken as needed. The problem booklets have calculation marks. However, the problem booklets for the 10th and 16th sessions are missing, but the problems are printed in the problem list page of the lecture booklets for each session, so there should be no problem. The lecture booklets for each session are very comprehensive, with page counts ranging from 55 to 74 pages. They include explanations, board notes, handwritten solutions, supplementary materials, and additional problems, all by the popular instructor, Mr. Miyata. You can see the thickness of the booklets in the second photo. In addition, each session's lecture booklet includes target scores for different universities, example problem checklists, official solutions, problem set explanations, and calculation tests, making them ideal for self-study. Furthermore, the grading commentary includes the average score for each practice session, the scores and university destinations of previous students, comments, grading criteria, and alternative solution considerations, which are also very comprehensive. However, only the grading commentary for the 16th session is missing. Price negotiations are welcome in the comment section, and I will respond as soon as possible. Once this product is sold, I plan to list the 17th session and beyond (divided into Math III and the second-term practice sessions). Finally, returns are not accepted. Thank you for your interest.