The math activity "Who has more" is to let children practice the number 1 1-20 and understand the concept of carry. In the activity, I let the children play games to compare and count coins. After several rounds, I asked the children to practice my math exercises. The requirement of the exercise is to count the coins in the piggy bank and tick them. After I explain the requirements, let the children practice. After the meeting, Zhuang Ziyun ran to me with a notebook and said, "Teacher, what if there is an equally big one here?" Subsequently, several children gathered around for this question. I read it carefully, and sure enough, the last question in the book is 1 yuan 10, and the other is 10 yuan 10, and the result is the same.

Then, I added another requirement: if they meet the same size, check them all. After this activity, I deeply reflected on why the children observed more carefully than I did, and they could also find out what I didn't find, and why after one child came up, other children immediately gathered around. That means I didn't prepare my lessons well before class. I just glanced at the topic, thinking that the child's homework would not be difficult, but I didn't expect the topic to go wrong. A similar situation happened before, but I found it in advance and revised the requirements of the topic, but this time the mistake still happened. What does this mean? Never be lazy in doing anything. People often have a kind of inertia, and the disease will attack after a while, but as long as you make up your mind. I think no matter how difficult it is, I will overcome it. At the same time, after a child found a question and asked me, other children followed suit. This also shows that children's determination is not firm, or it may be that I lack communication with children, which makes them distrust me and fear that I will criticize them for making mistakes. Through this math class, I saw a lot of my shortcomings, but I think through my efforts, I will slowly erase them.