First unit length unit:

1, knowing centimeters and meters.

2. Know the line segment.

Unit 2 Addition and subtraction within 100 (2):

1, two digits plus two digits (no carry addition).

2. Two digits plus two digits (carry plus).

3. Two digits minus two digits (no abdication).

4. Two digits minus two digits (abdication minus).

5. Application problems of two-digit addition and subtraction.

6. Jia Lian.

7. Continue to decrease.

8. Add and subtract.

9. Addition and subtraction estimation.

A preliminary understanding of the third unit angle;

1 and the characteristics of angle.

2. Understanding of right angles.

3. Unit test questions.

Unit 4 Table Multiplication (1):

A preliminary understanding of 1 and multiplication.

The multiplication formula of two plus five.

3, 1, 3,4 multiplication formula.

4. Multiply, add, multiply and subtract.

The multiplication formula of 5 and 6.

Unit 5 Observing objects.

Unit 6 Intra-table Multiplication (2):

The multiplication formula of 1 and 7.

2, how heavy.

Multiplication formula of 3 and 8.

Multiplication formula of 4 and 9.

Unit 7 Statistics.

Unit 8 Mathematics Wide Angle:

1 and a combination of numbers.

2. Exclude numbers.

Unit 9 General Review:

1, 1 and addition and subtraction within 00.

2. Intra-table multiplication.

3, meters and centimeters, angles and right angles.

4. Observe objects.

5. statistics.

6. Comprehensive exercises (1).

7. Comprehensive exercises (2).