Mathematics activities in the middle class-compare the number of activities within 10: 1, review and consolidate the numbers and numbers within 10. 2. Compare the quantity within 10. 3. Develop the flexibility of children's movements. Activity preparation: teaching aid:/kloc-number plate within 0/0. Learning tools: several exercise papers and graphic cards. Activity flow: first, show the number plate and guide the children to compare. 1. Show chart 1, compare children's points. Teacher: What's in the picture? Is it bigger or smaller? Why? Let's count! (Guide children to compare by counting. ) How many big spots are there? How many points are there? Who is more and who is less? More or less? Note: let the children count, regardless of the size of the object. Teacher's summary: there are more than 7 smaller ones and less than 6 larger ones. Six big dots are less than seven small dots 1, and seven small dots are more than six big dots 1. 2. Show Figure 2 to guide children to observe and compare. Teacher: Look, children, are there more red dots or green dots? Why? Note: let children compare without being affected by the color and arrangement of objects. Teacher's summary: There are as many 9 red dots as 9 green dots. 3. Show Figure 3 for children to observe.