First of all, in terms of knowledge and skills:

1. The main purpose is to enable students to master the calculation method of addition and subtraction within 100, and to calculate correctly.

2. Know the meaning of multiplication and the names in multiplication formulas, memorize all multiplication formulas and skillfully calculate the multiplication of two one-digit numbers.

3. Know the length units of centimeters and meters, and know 1 meter = 100 cm; Learn to measure the length of an object with a scale (limited to polished rice).

4. Have a preliminary understanding of line segments, angles and right angles, know the names of various parts of an angle, and use triangles to judge whether an angle is a right angle.

5. Be able to recognize the shapes of simple objects observed from different positions: preliminarily understand the axisymmetric phenomenon, and be able to draw axisymmetric figures of simple figures on grid paper; A preliminary understanding of mirror symmetry.

6. I can use the number of arrangements and combinations of the simplest things.

Second, in terms of mathematical thinking:

1, able to explain relevant mathematical information with life experience, and initially learn to describe phenomena in the real world with specific data.

2. In the process of mastering the estimation of pen addition and subtraction within 100, the consciousness of estimating the length of the object is formed.

3. In the process of understanding the length units of centimeters and meters, the concept of length is established, and the consciousness of estimating the length of an object while measuring it with a scale is formed.

4. In the process of sorting out and combining, M has formed the consciousness of thinking in an orderly and comprehensive way. In the dimension of solving problems.