What are the ideas in elementary school math teaching

1, reductive thinking, is a practical problem through some kind of transformation, reduced to a mathematical problem, a more complex problem into a simpler problem;

2, the combination of number and shape thinking, is to make full use of the "shape" of the quantitative relationship between the image of a certain representation, that is, by making a number of graphs such as line graphs, tree diagrams, rectangular area diagrams or set diagrams to help students correctly understand the problem of simple and intuitive;

3, the idea of transformation. Line diagrams, tree diagrams, rectangular area diagrams or set diagrams to help students correctly understand the quantitative relationships, so that the problem is concise and intuitive;

3, the idea of transformation, is from one form to another form of thought, such as solving equations in the same solution to the same solution to the transformation of the laws, formulas in the proposition of the propositional equivalence of the transformation of geometric shapes and forms of transformation, to understand the mathematical problems of the inverse transformation;

4 , combinatorial thinking, is to group the objects under study in a rational way, and to solve each of the various situations that may arise neither duplicated nor omitted.