1, number and algebra mainly include reading and writing methods of numbers (integers, decimals, fractions), rewriting of numbers (turning them into tens of thousands or hundreds of millions, seeking approximation) and so on. ), number comparison (integer, decimal, fraction comparison), four operations (calculation rules, operation sequence, operation law, etc. ), and the measurement of quantities (.

2. Geometry and graphics include understanding graphics (the name of graphics, the names of various parts, characteristics, properties, the relationship between graphics, etc. ), observing objects, calculating the area of plane graphics, the surface area and volume of three-dimensional graphics, the movement (translation and rotation), position and direction of graphics, etc.

3. Statistics and probability mainly include: the average mode of statistical tables and charts (bar line, sector, broken line, etc.). ), probability, etc.

4, the first day-understanding of numbers, clocks, graphics, simple addition and subtraction; Grade two-simple multiplication and division, understanding of length units, identification of position and direction, and understanding of angles; The third day-the comprehensive application of four operations, the understanding of quality units, the understanding and calculation of rectangles, and the preliminary understanding of scores.

5. Grade four-parallelism and intersection, basic learning of statistics, understanding and operation of irregular figures, and learning of multiples and factors; The fifth grade-the understanding of negative numbers and decimals, the basic operation of decimals, the understanding of equations, and the addition and subtraction of fractions; Sixth grade-four operations of fractions, cognitive ratio, learning of cylinders and cones, positive proportion and inverse proportion.