1, pants comparison.

A, observe pants.

The teacher showed four pairs of trousers on the wall chart.

Teacher: Look, what did the mother buy for the baby? How many pairs of pants did mom buy? Are they the same? What is the difference? Guide children to observe pants and tell them that pants are different in length.

B, than pants.

Teacher: Which pants are long and which pants are short?

Teachers and children compare pants together and get the result.

2. Pants are arranged in a row.

A, the teacher shows the long and short sorting boards.

Teacher: Mom asked the baby to line up a row of pants. Which pants do you think should be put in the front? How should I arrange it?

Encourage children to think positively and express their thoughts.

B, encourage children to arrange pants independently, and then talk about how they do it.

C. the teacher and the child discuss the method of length sorting.

Put your pants neatly on the finishing board along the upper and lower lines. You can find the longest (shortest) pants size with your eyes, and then sort them in turn by comparing them in pairs. You can also find the longest pants every time and adjust them when you find them long.

3. Line up the items.

A. discuss the rules of the activity.

Teacher: Small straws, sticks and hard card notes are all for children. Help them line up!

Teachers and children discuss and summarize together: first find out the longest or shortest object in the line, then compare the remaining objects, find out the longest or shortest object in the line, and talk about it after the row.

B, children's operation activities.

The teacher reminded the children to arrange the materials neatly on the sorting board.

Teachers encourage children to participate in multiple groups of operation activities.

Activity goal: 1. Let children like math through operation. 2. Willing to raise your hand boldly to answer questions in class. 3. It can discharge a series of 3 "5 objects according to the length difference of the objects.

Activity preparation: 1. Pants of different lengths. 2. Several sets (3-5 sets are one set) of small straws, sticks, cardboard strips, etc. There are also several sorting boards.