Activity objectives:

1. Try to use various objects for natural measurement, and compare the widths of objects by natural measurement.

2. Cultivate children's interest in natural measurement and width comparison.

Activity preparation:

1. Fix two towels with the same width but horizontal and vertical patterns on the demonstration board.

2. Various natural measuring tools: sticks, ropes, pencils, long wood chips, etc.

3. Let the children bring some things they usually collect, such as candy paper and shells.

Activity flow:

First, rows and rows.

1, showing three different pieces of paper, the difference between width and width.

Explanation: What is this? What is the difference? Which is wide? Which is narrower? How do you know (overlapping comparison) 2. Sort by width.

Note: Please line up from wide to narrow (from narrow to wide).

Second, take a look.

1, the teacher showed the children two towels with the same width but horizontal and vertical patterns. What's the difference between these two towels? Which of these two towels is wider and which is narrower? (of horizontal distance) 2. Children get different comparison results. Teacher: How can we prove who is right? Measurement method is introduced into communication.

Third, learn to learn.

1, the teacher shows various tools: sticks, ropes, pencils, long wood chips, choose one, and focus on demonstrating the closing method and measuring the horizontal distance.

2. The child chooses a tool, judges which towel is wide and which towel is narrow by measurement, and finally draws the conclusion that two towels are as wide.

3. Summary: Just now, some children were influenced by the straight lines and horizontal lines on the towel and misjudged the width of the towel, because the straight lines make people feel very narrow and the horizontal lines make people feel very wide. In fact, they are the same width.

Fourth, give it a try.

The teacher gave the children various measuring tools and asked them to try to measure the width of other objects. Which is wider or narrower, the door or the window? Which is wider or narrower, the table or the chair? Wait a minute.