Classes 5 and 7 of Yousheng Road Primary School: Jiao

In class, it is the common wish of every pupil that we become the protagonists and masters of learning.

First of all, what we want to do and like to do in math class.

Math activity class is a class that we all love. Under the guidance of the teacher, we divide into groups, measure ourselves, piece together ourselves, cut ourselves, calculate ourselves, explore and discover laws, and master mathematical knowledge. This not only cultivates the practical ability, but also improves the thinking ability, which gives us a preliminary taste of the success of mathematicians in studying problems and doubles our interest in mathematics.

For example, in our "Calculation of parallelogram area" class, the teacher asked us to divide into several groups and hand out some small pieces of parallelogram paper for the students to discuss with each other. How to make a parallelogram into a figure whose area we have calculated? Everyone had a heated discussion. Some students found that parallelogram can be cut into right triangle and right trapezoid along its height with scissors, and then it can be spliced into rectangle. Some students also found that two right-angled trapezoids can be cut from any height of a parallelogram, and they can still be combined into a rectangle of the same size. Through observation and thinking, students realize that the "length" and "width" of the assembled rectangle are the "bottom" and "height" of the original parallelogram respectively. From this, we finally found the parallelogram area formula: S=ah.

Second, we should talk about it in math class and love to talk about it.

That's an open activity class. Wow! There are many teachers in the back, and we are really nervous! Before class, I think even if I have my own ideas, I may not be able to express them. The teacher seems to have read our minds. The teacher said humorously, "We are playing an expired game now. We would like to know about it。 The teacher also said that the "expired" game is a game that "exceeds 7". When it contains 7 or multiples of 7, we should say "exceeds". Oh, it made us laugh and finished the game in a very relaxed atmosphere. At this time, I found that students who didn't want to talk began to become active, and those who dared not speak were relieved. I still remember that the teacher said "understanding of hours and minutes" in that class. When the hour hand is between 2 o'clock and 3 o'clock and the minute hand is between 1 1, there are different opinions about whether it is 2: 55 or 3: 55, which leads to completely different opinions. At this time, the teacher asked us to discuss and explore in groups with our own clock model, and finally got a unified answer.

In a word, I think it is very popular for us primary school students to have math classes in the form of activity classes. In class, the teacher always stimulates our desire, making us want to say, say, operate and do. We fully realize the happiness and pride of being the master of learning. In this way, we will learn more solidly, more easily, more flexibly and better.