I. teaching material analysis

This unit mainly studies factors and multiples. This part of the content is learned on the basis of students' initial mastery of divisibility. It is an important aspect to discuss the nature of divisibility, and it is also the basis for the subsequent study of common multiples and common factors.

Second, the teaching objectives

Make students understand the meaning of factors and multiples and know that they are interdependent.

Make students master the method of finding factors and multiples, and find the factors and multiples of a number correctly and quickly.

Cultivate students' ability of analysis, synthesis and abstract generalization and develop mathematical thinking.

Third, the teaching content and key difficulties

This unit mainly studies the meaning of factors and multiples, and the method of finding them. The key point is to understand the concepts of factors and multiples, and master the methods of finding factors and multiples. The difficulty lies in correctly distinguishing the factors and multiples of a number and making clear the differences and connections between them.

Fourth, teaching strategies and teaching methods.

Introduce the concepts of factor and multiple through examples to help students understand the meaning of factor and multiple.

With examples, let students master the method of finding factors and multiples.

Through practice and classroom discussion, students can deepen their understanding of factors and multiples and improve their ability to solve problems.

Verb (abbreviation of verb) teaching process and teaching links

Review and lead-in: Review the concept of divisibility and introduce the concepts of factor and multiple.

New lesson learning: let students understand the concepts of factors and multiples through examples, and master the methods of finding factors and multiples.

Classroom exercises: through exercises, students can deepen their understanding of factors and multiples and improve their ability to solve problems.

Classroom discussion: Let students find the rules through discussion, summarize the characteristics and deepen their understanding of factors and multiples.

Class summary: summarize the content of this class and emphasize the key points and difficulties.

Homework arrangement: arrange related exercises to consolidate the knowledge learned.

The role of preparing lessons and teaching plans

Provide the organizational structure and steps of teaching: Teaching plans help teachers plan and organize the whole teaching process. The teaching plan includes teaching objectives, teaching contents, teaching methods and processes, which helps teachers to clearly understand the purpose and arrangement of each link and ensure the orderly teaching process.

Guide teachers to think about teaching design: compiling teaching plans requires teachers to fully think about the design and arrangement of classroom activities. Teaching plans can help teachers think about how to stimulate students' interest, how to stimulate students' thinking, how to provide enough practice and consolidation, and how to evaluate students' learning, which is helpful for teachers to design teaching activities in a targeted manner.