2. Analysis of students' situation.

After more than one year's study, students' study habits have been formed. Most students have good study habits and a strong sense of responsibility. Some students' handwriting is still sloppy. This is a very serious problem and must be improved. At the same time, we should develop students' mathematical ability, let them realize the connection between mathematics and life, and have the confidence to learn mathematics well.

4. teaching material analysis.

5. Changes in content.

6. The difficulty is reduced. Mainly reflected in the changes in the contents of the first unit and the third unit. The first unit is the content of statistics. It turns out that the second volume of the second grade is mainly a teaching composite statistical table and a bar chart with 1 as 5. Now focus on the methods of investigation and the methods of recording and sorting out information. The third unit is the movement of graphics. At present, students are only allowed to intuitively understand the phenomenon of axisymmetric graphics, translation and rotation, and the original requirement of drawing the other half of axisymmetric graphics and identifying how many squares the graphics have translated on the grid paper is deleted.

7. Improve the structural system. Mainly reflected in the changes in the content of unit 5 and unit 6. One is to arrange the mixed operation unit in time, and the other is to move the unit "Division with Remainder" from the first volume of Grade Three to the second volume of Grade Two, which can highlight the connection between "Division with Remainder" and "Division in Table".

8. Teaching content.

9. This textbook includes: data collection, table division, graphic movement, table division (II), mixed operation, division with remainder, understanding of numbers within 10,000, grams and kilograms, simple reasoning, small designers who use mathematics to solve problems and practice mathematics, etc.

10, arrangement characteristics.

1 1. The contents of each field are arranged alternately and matched with each other.

12, continue to strengthen the cultivation of students' knowledge organization ability.

13, continue to focus on the background knowledge of mathematics.

14, cultivate the ability to solve problems in the whole process.

15. The levels and functions of exercises are clear.

16, providing clues for teaching evaluation.

17, teaching purpose.