What can be offered in the expansion course of primary school mathematics?
What is the understanding of 1 large number in the first volume of the fourth grade of People's Education Edition? The measurement of two angles, three digits multiplied by two digits, four parallelograms and trapezoid, five divisors are the division of two digits, and six statistics. Have you ever sent a greeting card? 7 Mathematics Wide-angle Fourth Grade Volume 1 Four Calculations 2 Position and Direction 3 Arithmetic and Simple Calculation Significance and Nature of Nutritional Lunch 4 Decimal 5 Triangle Addition and Subtraction 6 Decimal 7 Statistics 8 Mathematics Wide-angle Small Butler Beijing Normal University Edition Fourth Grade Volume 1. Know a bigger number 2. Lines and angles. Walking into nature 4. Multiply 5. Organize review (1) 6. Graphic transformation 7. Division 8. Direction and direction. 9. The negative number in life is 10. Review (2) 1 1. Statistics are 12. The data tells me that the second volume of grade four is 1. The understanding and addition and subtraction of decimals is 2. The understanding of numbers is 3. The multiplication of decimals is 4. Knowledge of numbers is 5. Review (1) 5438+0 1. Understand the equation 12. Rules in Figure 1 of Grade Four of Jiangsu Education Edition Unit 1 Division Unit 2 Angle Unit 3 Mixed Operation Unit 4 Parallelism and Intersection Unit 5 Seeking Rules Unit 6 Observing Objects Unit 7 Arithmetic Unit 8 Fourth Grade Volume I Multiplication Unit 2 Ascending and Milliliter Unit 3 Triangle Unit 4 Mixed Operation Unit 5 Parallelogram and Trapezoid Unit 6 Seeking Rules Unit 7 Arithmetic Unit 8 Symmetry, Translation and Rotation Unit 9 Multiplication and Factorization Unit 10 Exploring Rules with Calculator Unit 11