? (2008-05-22 17:4 1:37)

I have long heard from teachers who teach in rural areas that mathematics textbooks published by the Soviet Union are more suitable for teaching in cities, and many textbooks are not suitable for teaching in rural areas, especially in remote rural areas. Have a deep understanding of recent teaching life.

? During the teaching of rectangular and square area, combined with students' real life, I learned about square meters, which is about as big as the desktop of the table where they eat at home. I drew a square with a side length of 1 meter on the blackboard and learned the square decimeter. I cut out a square with a side length of 1 decimeter from a piece of paper. Compared with their palms, it is about the size of a palm. Know 1cm 2, cut a small square with a side length of1cm, compare it with1cm 2, and put it on the student's thumb nail, which is similar to the thumb nail. Students' concept of area unit is ok.

But when I was doing some exercises, I met an unexpected problem:

The area of a stamp is 6 (). The students said that we had never seen how big the stamps were!

The area of the handkerchief is about 4 (). The student said, what is a handkerchief like? We've never used it!

The area of a swimming pool is about 1250 (). The student said, how big is the swimming pool? We don't know!

The area of a football field is about 2000 (). The student said, we have never seen a football field!

......

Students don't know and can't use it. Of course, if they can't establish effective contact with the area unit, they will fill it in indiscriminately. Even if they give him an analogy, he still doesn't have an intuitive understanding, so this kind of problem is too far away from the students and the teacher is very laborious.

On the contrary, they are familiar with the areas of fish ponds, mulberry gardens, classrooms and math books.

If our textbooks combine the actual life in rural areas, especially remote agricultural materials, and add some life contents that they usually hear and see, I believe it will be of great benefit to the mastery and application of mathematics knowledge.

Of course, as a teacher, it is also important to use textbooks creatively, but who can guarantee that all teachers can "teach with textbooks" instead of "teaching textbooks"?