Introduction class: it is the first class of each semester. Teachers give students an overall introduction to the learning content of this semester, and introduce some related mathematics development history and interesting mathematics, with the aim of stimulating students' interest in learning. For example, list some relevant examples of how to solve problems in students' study life with mathematics, and then guide students' learning methods (such as observation, exploration, induction, classification, analogy, etc.) on the overall macro level, so as to guide students to understand the nature, task, significance and important knowledge content of junior high school mathematics initially and enter learning in a good state. (Let students make clear the relevant requirements and evaluation mechanism of efficient classroom, and make clear and detailed requirements for students' self-preparation, completion of study plan, work standards, group cooperation and communication, classroom display, correcting mistakes, and use of two-color pens. )
New teaching: The main task of new teaching is to enable students to acquire new mathematical knowledge and methods, cultivate students' mathematical modeling ideas, apply mathematical knowledge to solve practical problems, and realize the three-dimensional goal of mathematical learning. It is the most common, basic and universal class type in mathematics class.
Exercise class: Exercise class is a common teaching form in mathematics teaching. Through students' practice, we can analyze and explain the main points of study independently and summarize our mistakes in various exercises, so as to consolidate and deepen the knowledge structure, cultivate students' thinking ability and promote the teaching type.
Review class: Review class is to consolidate and deepen the basic knowledge that students have learned, and it is a process for teachers and students to learn and improve again. Emphasizing the comprehensive application of knowledge, students can make clear the internal relationship between knowledge points by drawing knowledge trees and other forms, so as to systematize them and form a knowledge system, and further improve students' mathematical basic ability and comprehensive application ability.