1. Four operations: addition, subtraction, multiplication and division are the basis of primary school mathematics, and students need to master the rules and methods of these basic operations.
2. Comparison of numbers: Students need to learn how to compare numbers, including integers, fractions and decimals.
3. The nature of numbers: Students need to know the nature of numbers, such as prime numbers, composite numbers, even numbers and odd numbers.
4. Fraction operation: Students need to master addition, subtraction, multiplication and division of fractions, including simplification and general division of fractions.
5. Decimal operation: Students need to master decimal addition, subtraction, multiplication and division operations, including decimal and integer operations and decimal and decimal operations.
6. Geometric figures: Students need to know the names, properties and characteristics of various geometric figures, such as squares, rectangles and circles.
7. Area and perimeter: Students need to learn to calculate the area and perimeter of various geometric figures, including rectangles, squares and triangles.
8. Data collection and arrangement: Students need to learn how to collect and arrange data, including making tables, charts and bar charts.
9. Simple algebraic expressions: Students need to understand the concepts and operation rules of simple algebraic expressions, such as linear equations of one variable and linear inequalities of one variable.
10. Time and calendar: Students need to learn reading and writing time, calculate time intervals and solve problems related to calendars.