Activity objectives:

1. Encourage children to choose their own measuring tools to measure the surrounding objects, and find the relationship between measuring tools and measurement results through exploration and comparison.

2. Understand the application of measurement in life and stimulate children's interest in measurement.

3. Willing to cooperate and communicate with peers to solve problems.

Activity preparation:

1, the child has preliminary measurement experience.

2. Rulers, ropes, soft rulers, straws, sticks, short building blocks, pencils, chopsticks, paper clips, boxes, books and other items.

3. Record sheet, watercolor pen and magnetic board.

Activity flow:

I. Introduction: Presentation of the mandate

Today, children come to be "little surveyors". They use three different tools to measure the same edge and record the measurement results.

Second, exploration: grouping measurement and recording.

1. Children can freely negotiate and choose the right measuring tool to measure the same edge of an object.

2. The teacher visits and observes, listens and understands the situation of children's measurement.

3. Encourage children to measure with different tools and record the measurement results.

Third, sharing: the process and results of dissemination measurement

1. Stick the measurement records of each group of children on the magnetic board, and the children will communicate while watching and discuss the measurement process and results.

2. Guide children to analyze and record the results and talk about why there are different results. And in the analysis and comparison, we get different experiences of measuring the same edge with different measuring tools.