After listening to teacher Feng's class, I deeply felt her energy and passion in class and her interaction with students. The focus of this lesson is:

1. Design math games when importing, so that students can enjoy it. Clapping before class not only allows students to review the composition of 10, but also enables children to quickly enter the learning state and stimulate their desire for knowledge.

2. Create problem situations to broaden students' thinking.

In teaching, Mr. Feng created a situation of ostentation and extravagance, so that students can gain knowledge, develop their thinking and enjoy beauty while actively participating in the activities of ostentation and extravagance. Show the first picture and let the students express their ideas freely. Then, calculate the formula, 9+1=1+9 =10-1= 919 =1.

3. Practice has different levels and forms.

There are many exercises and forms in this course, including the first round, followed by the practice of using gestures to represent numbers, and the practice of crossing boundaries. Students have gained a lot of knowledge through continuous practice, effectively consolidating the new knowledge they have learned in this class.

4. During the whole class, students and teachers exchanged enthusiastically. Teachers paid attention to cultivating students' speaking ability and evaluating others' ability, so that children really liked math class and their ability was exercised, which well reflected the theme of this teaching and research activity.

Suggestion: When Mr. Feng teaches 5+5= () and 10-5= (), let the students try to draw and color. However, many children still don't have a good understanding of how to draw. They can use school tools to put it on, which not only saves time, but also shows students that a painting is not necessarily four-style, so it is two-style.