Numbers and algebra: understanding, representation, size, operation and estimation of numbers;

Graphics and geometry: the basic graphics of space and plane, the nature and classification of graphics; Translation, rotation and axial symmetry of graphics;

Statistics and probability: collecting, sorting and describing data, and processing data;

Practice and comprehensive application: learning activities with a class of problems as the carrier and students' active participation are important ways to help students accumulate experience in mathematics activities.

The basic idea of the new curriculum standard of primary school mathematics

1. The mathematics curriculum in compulsory education should be basic, universal and developmental, so that mathematics education can face all students and everyone can learn valuable mathematics; Everyone can get the necessary mathematics; Different people get different development in mathematics.

2. Mathematics is an indispensable tool for people's life, work and study, which can help people to process data, calculate, reason and prove, and mathematical models can effectively describe natural and social phenomena; Mathematics provides language, ideas and methods for other sciences, and is the foundation of all major technological developments; Mathematics plays a unique role in improving people's reasoning ability, abstract ability, imagination and creativity. Mathematics is a kind of human culture, and its content, thought, method and language are important components of modern civilization.

3. Students' mathematics learning content should be realistic, meaningful and challenging, which is conducive to students' active observation, experiment, guess, verification, reasoning and communication.