Shantou junior high school geography is published by Hunan Education Edition. Hunan Education Edition's "Instruction Manual for Junior High School Mathematics Self-study" is a reference book for junior high school auxiliary learning compiled by many experienced math teachers and published by Hunan Education Publishing House. This series of books is divided into grade seven mathematics (Hunan Education Edition), grade eight mathematics (Hunan Education Edition) and grade nine mathematics (Hunan Education Edition). Each class has four modules: learning preparation, teaching material guidance, learning detection and consolidation and improvement, which follow the principle of mathematics learning and meet the actual needs of teachers and students.