1. You can calculate the division of one digit divided by multiple digits, the multiplication of two digits, and estimate and check the corresponding multiplication and division.

2. To calculate the divisor of a digit orally is integer ten, integer hundred and integer thousand, integer ten and integer hundred are multiplied by integer ten, and two digits are multiplied by integer ten and integer hundred (each product is less than ten).

3. Have a preliminary understanding of simple decimals (the decimal part does not exceed two digits), have a preliminary understanding of the meaning of decimals, can read and write decimals, have a preliminary understanding of the size of decimals, and can calculate the addition and subtraction of one decimal.

4. Know the eight directions of east, south, west, north, northeast, northwest, southeast and southwest, and be able to identify the other seven directions with a given direction (east, south, west or north), and use these words to describe the direction of objects; Can read simple road maps and describe walking routes.

5. Understand the meaning of area. You can use the units you choose to estimate and measure the area of a graph, experience and understand the area units (square centimeters, square decimeters, square meters, square kilometers, hectares), and carry out simple unit conversion; Mastering the area formulas of rectangles and squares can correctly calculate the areas of rectangles and squares and estimate the areas of given rectangles and squares.

6. Know the time unit year, month and day, and understand the relationship between them; Know the days of each month and the whole year; Knowing the 24-hour clock, I will use the 24-hour clock to express the time.

7. Understand different forms of bar graphs and learn simple data analysis; Understand the meaning of average, and find the average of simple data (the result is an integer); Further understand the role of statistics in real life.

8. Experience the process of finding, asking and solving problems in real life, understand the role of mathematics in daily life, and initially form the ability to solve problems by comprehensively applying mathematical knowledge.

9. Understand the idea of set and equivalent replacement, form the consciousness of discovering mathematics in life, and initially form the ability of observation, analysis and reasoning.

10. Experience the fun of learning mathematics, improve the interest in learning mathematics, and build confidence in learning mathematics well.

1 1. Develop a good habit of working hard and writing neatly.