In order to further improve teachers' professional quality, improve classroom teaching methods and means, explore multi-channel education mode and promote teachers' professional growth. On April 8, Bali Central School invited Mr. Dai, the core member of Dong Xiqun's famous teacher studio of the County Academy of Educational Sciences, to attend the heterogeneous teaching and research activities of the primary school mathematics group in Bali Town.

This activity brought together all the members of Bali Central School, and teachers from Bali Town Primary School, Weiming Primary School and Hongsheng School attended and commented on the class, which was wonderful.

Jiang Feng and He Lei from Bali Town Primary School, Liu Ying from Weiming Primary School, and Zhang Xiao from Hongsheng Primary School are all in the same class. Unit 5, Mathematics "Sum of Inner Angles of Triangle".

They take students as the main body and study as the center, design colorful teaching activities, interpret their own understanding of teaching from different angles, show solid teaching basic skills, and reflect distinctive teaching personality, skillful classroom control and effective classroom evaluation.

Around "the sum of the angles in a triangle", four wonderful teaching lessons were shown to us. The four teachers' different teaching concepts, teaching designs and teaching methods make the teachers truly feel the fun and charm of mathematics teaching, learn new methods, and collide with the sparks of thinking in class evaluation.

After the classroom teaching, all the teachers will discuss and exchange ideas. First, teachers show their teaching ideas, teaching designs, teaching methods and teaching means, and then other teachers make speeches and comments on classroom teaching one by one.

Affirm the advantages, point out the disadvantages, make real progress in reflection, grow in communication, further open teachers' teaching ideas, form a rich teaching and research atmosphere, and achieve the goal of common learning and common improvement.

Teacher Dai made wonderful comments on the four classes respectively. While fully affirming the advantages of several teachers, she also hopes that teachers will create an efficient classroom with primary school characteristics with efficient classroom, intelligent teaching and colliding thinking.

The teaching and research model of "heterogeneous in the same class" provides a platform for teachers to communicate and interact face to face. On this platform, teachers work together to solve difficult problems in teaching, explore the art of teaching, exchange experiences and share the joy of success.

Multi-dimensional angles, different styles and different strategies collide and sublimate in communication. This multi-dimensional and all-round cooperative discussion is of substantial significance for creating a good teaching and research atmosphere and improving the teaching and research level of teachers in all schools as a whole!