You can not only read 10, but also count the items within 10 with your hands and mouth. The relationship between number, quantity and quantity of middle school children is mainly to let children master: 1, and they can perceive and distinguish the characteristics of objects from the aspects of thickness, thickness and weight, and can describe them with corresponding words; 2. Compare the number of two groups of objects by counting; 3, can understand the relationship between numbers through practical operation, such as 5 is greater than 4, and 2 and 3 add up to 5; Numbers can be used to describe the order and position of things, such as mom sitting in the sixth row.