Tự làm các mô hình dạy học Toán đơn giản

Hello everyone, I would like to introduce our team to you. First of all, our team uses simple and easy-to-find materials, such as bamboo and clay. We make a model to teach the lesson of even-triangle, even-square and even-square shapes. Through this model, students can determine the vertices of an even-triangle, the sides, the bottom and the sides. How many sides does each shape have? Similarly, an even-triangle, an even-square and an even-square shape are the same. In the design process, there is no difficulty. The model is very simple and easy to learn and observe. The second team is the application team, which teaches the students to discover and find out the nature of the even-triangles. The teacher will ask the students to prepare four different colored papers, and ask the students to draw an even-triangle. Then, using a ruler, the students will determine the points D, E of the A, B and A, C. Then, they will cut three A, D and E triangles, and compare them with the A, D and E triangles just now. Then, they will use these three triangles to combine them into the shape of D, E, C and B triangles to make it fit this shape. The students are asked to draw the relative position between the D and E triangles and the B and C triangles. The students will draw the nature of the D and E triangles parallel to the B and C triangles. The second requirement is to compare the length of the D and E triangles with the length of the B and C triangles. The students will find out that the length of the D and E triangles is half of the length of the B and C triangles because they are joined by these two triangles. After the students have finished the work, they will be asked to answer two questions from the teacher. The teacher will give the concept that the line of D and E triangles goes through the middle point of the two A, B and A, C triangles, which is the middle point of the even-triangles. The students will have two qualities, which are parallel to each other and half of the length of the third triangle. I would like to stop the presentation now.