1. Prepare teaching AIDS. Teacher Wu used a simple courseware in the activity, but it was very effective. The seemingly simple courseware is not so easy to do. In order to collect the materials of the courseware, I took my camera to the supermarket to take pictures everywhere, and was mistaken for a food safety inspector by people in the supermarket several times.

After collecting the materials, I began to make them. In the process of making, I learned some skills of making, such as clicking the answer and inserting animation. I believe this skill will also be used in the future courseware making.

The children's homework materials have been adjusted. The two homework materials in the original activity are merged into one, and printed on the front and back, which not only saves paper, but also reduces the interference of children taking the materials to the activity.

4. Organize teaching. Although I have made preparations before class, I will inevitably worry before the activity. Will children be interested in this activity? The children can answer my questions, and it turns out that my worries are unnecessary. The children are very interested in this activity.

5. After class, some teachers gave me opinions and suggestions, thinking that I was too impatient to deal with the key points of activities. For example, the second operation in the second part of the activity should be the key part of the activity, so that children can understand that the small words in brackets represent different meanings, and different small words and different quantities are the difficulties of the activity.

6. I talked too much when guiding children to solve the difficulties of discovery activities. For example, I asked if the number four must be written under the biscuit, and how to change the small words in brackets. After asking several times, a child finally said: box. I immediately praised it and continued to ask if there were any different answers. Give children time to think and guide them.