The goal of the new curriculum reform in China is "for the development of all students", attaching importance to integrating theory with practice, cultivating students' practical ability and realizing the all-round development of students' intellectual and non-intellectual factors. Case teaching can enable students to turn all their knowledge into their own opinions, cultivate students' ability to analyze and solve problems, and better adapt to the needs of society and life. Case teaching requires teachers to turn the classroom into a two-way interactive classroom between teachers and students, thus injecting vitality into the teaching classroom.

First, the role of case teaching method in junior high school ideological and political lessons

1, to promote the realization of the curriculum objectives of junior high school ideological and political courses.

The ideological and political course in junior high school is closely related to students' real life. The optimal application of case teaching method can greatly promote the realization of the goal of political course and improve the teaching effect. The case teaching method of junior middle school ideological and political course helps students to understand the national conditions and real society of China, the basic viewpoints of Marxism, the ability of independence, self-reliance and self-improvement, the spirit of collectivism and patriotism, and the initial formation of a correct world outlook and outlook on life. [1] In the process of optimizing application, case teaching method helps students to learn course knowledge, pays attention to cultivating students' life ability, and strives to improve students' ability of autonomous learning and solving practical problems. Case teaching method has greatly promoted the realization of junior high school political teaching objectives.

2. Stimulate junior high school students' interest and enthusiasm for political lessons.

Junior high school ideological and political courses should help students establish a scientific world outlook, outlook on life and values according to their ideological status. The content of ideological and political course in junior middle school is boring and theoretical. To improve the teaching effect of ideological and political course, students' interest and enthusiasm must be mobilized. Because political knowledge is boring, the optimal application of case teaching method integrates knowledge into case teaching, allowing students to analyze independently, which greatly enhances students' autonomous learning ability. Case teaching method makes theoretical knowledge concrete, visual and vivid, makes students improve their analytical ability, gains happiness in learning, stimulates students' enthusiasm for participation, and mobilizes junior high school students' interest in participating in ideological and political courses.

3. Cultivate junior high school students' ability to analyze and understand problems.

The biggest feature of junior high school ideological and political education is to combine reality and must adhere to the principle of integrating theory with practice. Therefore, training junior high school students should proceed from reality, and the development of knowledge cannot be separated from practice. The case teaching method of junior high school ideological and political course allows students to analyze actual cases, bring students into specific case situations and cultivate their ideal thinking ability. Case teaching method improves students' learning enthusiasm, enables junior middle school students to learn to use Marxism to solve practical problems, and improves students' ideological and political consciousness.

Two, the use of case teaching method to grasp several basic principles.

1, the principle of pertinence

Case teaching should conform to the teaching objectives of the course and aim at the students' reality. When selecting cases, teachers should carefully screen cases, guide students to focus on teaching objectives, and finally return to teaching objectives. In addition, the difficulty of the case should also be aimed at the students' cognitive level, and the choice of the case should be determined according to the students' actual situation. In every link of case teaching, students should also be targeted. It is this clear pertinence that can better realize the teaching goal of ideological and political course.

2. The principle of participation

Case teaching promotes students' life development and pays more attention to students' life value, so it can better attract students to participate in course teaching. In case teaching in middle schools, only by encouraging students to actively participate and have effective interaction and discussion can the significance and value of teaching be realized.

3. Inspiration principle

Through case scenarios and problems, students are inspired to think and analyze independently, so case teaching is very enlightening. In case teaching, teachers should stimulate students' interest in time, open students' thinking horizons and promote students' thinking in depth. Only by insisting on inspiration and guidance can teachers help students form a good way of thinking and achieve teaching goals.

4. The principle of moderate difficulty

When choosing a case, we should consider the difficulty of the case, and the case should not be too simple and clear, let alone obscure. It is necessary to make cases conform to students' acceptance ability and promote the expansion of students' knowledge. Control the difficulty of the case within a reasonable range, combine the theoretical knowledge learned, mobilize students' enthusiasm and complete the learning task. Cases with moderate difficulty, so that everyone can follow them reasonably and increase the fun of students' participation.

Third, the application strategy of case teaching method in junior high school ideological and political course

1. Correct the understanding and concept of junior middle school political teachers.

Teachers are the initiators and organizers of case teaching method. Only when teachers have a correct understanding can they use case teaching method reasonably and optimize the teaching effect. It is necessary to guide junior middle school political teachers to understand the role of case teaching method, correct the problems existing in the application process of junior middle school ideological and political teachers, and optimize the application of case teaching method in junior middle school ideological and political lessons, and we cannot treat the role of case teaching method in isolation and unilaterally. We should put the case teaching method into specific scenes and analyze specific problems. Only by adopting different teaching methods according to different contents and taking the essence and discarding the dross can the teaching quality be better improved.

2. Improve the quality and skills of political teachers.

The quality and skills of some junior middle school ideological and political teachers are still insufficient. Teachers' quality and skills directly affect the teaching process and effect. We must strive to improve the quality and skills of teachers in order to achieve the best results. First of all, we should focus on improving teachers' firm political beliefs. Teachers of ideological and political courses need to have firm political beliefs in order to cultivate students' outlook on life and values. Political teachers need to constantly improve their ideological awareness in order to ensure the correctness of the teaching direction of ideological and political courses. Secondly, pay attention to the cultivation of teaching ability and master the case teaching method. Teachers should not only have rich knowledge of cases, but also master a lot of knowledge of other related disciplines, otherwise they can't control the classroom teaching of political lessons. Teachers of case teaching method in ideological and political courses should constantly change roles and master these role skills to ensure the orderly and smooth progress of case teaching.

3. Stimulate and cultivate students' awareness of effective participation.

Ideological and political teaching is a process of bilateral activities between teachers and students. Without the cooperation of students, no teaching effect can be achieved. Students are the main body of teaching. When optimizing the application of case teaching method, we must stimulate and cultivate students' awareness of effective participation in cases. Case teaching method requires students to take the initiative to learn and have innovative consciousness, and at the same time cultivate students' independent thinking ability and innovative ability. [2] Nowadays, in order to adapt to the future society, students' study habits must be changed. Teachers should be student-oriented, provide timely help for students' learning in the classroom of case teaching, establish students' dominant position, and cultivate their awareness and habits of autonomous learning.

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