Teaching Design And Case Study Of Junior Middle School Mathematics Activity Course Based On“Re-creation” Theory

In recent years,mathematics education has paid more attention to educating people and the all-round development of students.As one of the important teaching modes,mathematics activity classes have received more attention.Compulsory education and the new high school curriculum standards all put forward relevant requirements for the content of mathematics activities.The junior high school stage is an important stage for the primary school to pave the way for the high school.It is particularly important to carry out appropriate mathematics activity classes in the junior high school to achieve the educational goals.In 2019,the Ministry of Education of our country also encourages students to personally understand knowledge in teaching and highlights the cultivation of students’ innovative and creative abilities.Freudenthal’s "re-creation" theory advocates that students should discover and create what they will learn during the learning process.This theory is often used as the theoretical basis of mathematics activity classes,but seldom can really realize the re-creation in activity classes.Therefore,this research is based on the theory of "re-creation" to make an overall analysis of the teaching design of junior high school mathematics activity classes,so that the re-creation activities are reflected in the teaching process as a whole.This research first uses the literature analysis method to determine the research content and research direction to lay a good foundation for the conduct and implementation of the research.Then use the questionnaire method and interview method to investigate the students and teachers of the research school respectively,to understand that the mathematics learning habits of the students in the research school are still in a passive learning state,and the teachers have a clear understanding of the role of math activity classes,but it is inconvenient to carry out due to the actual situation.Secondly,the research focuses on the five aspects of design principles,teaching objectives,teaching content,teaching process and teaching evaluation of junior high school mathematics activity teaching design based on the theory of "re-creation".To determine the five principles that need to be followed in teaching design: the principle of teacher leadership;the principle of student subjectivity;the principle of mathematics;the principle of re-creation;the principle of hierarchy.Combining the theory of "re-creation" and three-dimensional goals to clarify the overall teaching goals,and analyze the vertical and horizontal structure of the activity content and knowledge content,as well as the content emphasis and difficulty,to construct teaching evaluation indicators.Based on the "re-creation" theory,design three types of junior high school mathematics activity classes: experiment,inquiry,and model building,and analyze three cases.It is found that the mathematics activity class based on the theory of "re-creation" has the characteristics of focusing on students as the main activity,multi-level diversification of activities,and changing the teaching and mathematics views.Summarizing the teaching strategies based on "re-creation" theoretical mathematics activity classes are as follows:(1)Attach importance to the introduction of situations and "regenerate" problems.(2)The problem is mathematicized,and the conclusion is "guess again".(3)Hands and brains are used together as one for learning and "re-creation" in the activity.(4)Induction and in-depth learning,"re-application" of knowledge and experience.