Why do you want to talk about painting in the second volume of mathematics in the third grade?
It is conducive to the improvement of students' ability to analyze problems. In mathematics teaching, after showing each problem, let students present the mathematical information and quantitative relationship in the problem by drawing, which is beneficial to improve students' ability to analyze problems and lay a solid foundation for correct formula calculation. Mathematics is a subject that studies concepts such as quantity, structure, change, space and information.