1. Understanding and operation of numbers: including basic concepts such as natural numbers, integers, fractions and decimals, as well as operation methods such as addition, subtraction, multiplication and division, addition, subtraction, multiplication and division of fractions, continued fractions and divisors.
2. Geometry: including the concepts and classification of points, lines, surfaces and bodies, such as plane geometry (angles, line segments, triangles, quadrangles, etc.). ) and solid geometry (cuboid, cube, cylinder, cone, etc. ).
3. Data processing: including data collection, arrangement and presentation, such as making histogram, line chart and pie chart. , and simple statistical analysis methods.
4. Calculation of area and perimeter: Learn how to calculate the area and perimeter of various shapes, such as rectangles, squares and circles.
5. Time and date: master the basic knowledge of calendars, such as the conversion of years, months and days, and the calculation of time (hours, minutes and seconds).
6. Decimals and percentages: Understand the concepts of decimals and percentages, and learn to convert the number of components or decimals for calculation.
7. Probability statistics: Understand the basic concept of probability, learn to calculate the probability of simple events, and conduct simple data statistics and analysis.
These contents are the basis of primary school mathematics. Through systematic study and practice, students can establish a solid mathematical foundation.