2, can calculate a number by integer ten and integer hundred; Will write a number multiplied by two or three digits, will make an estimate; Can skillfully calculate divisor with quotient of one digit and division with remainder.

3. Have a preliminary understanding of simple fractions (denominator less than 10), be able to read and write fractions and know the names of each part, have a preliminary understanding of the size of fractions, and be able to calculate simple addition and subtraction of fractions with the same denominator.

4. Have a preliminary understanding of parallelograms, master the characteristics of rectangles and squares, and draw rectangles, squares and parallelograms on grid paper; Knowing the meaning of perimeter, we can calculate the perimeter of rectangle and square; The length of some objects can be estimated and measured.

5. Know the length unit kilometer, initially establish the concept of 1 kilometer, and know that 1 kilometer = 1000 meter; Understand the quality unit ton, initially establish the quality concept of 1 ton, and know that 1 ton = 1000 kg; Knowing the time unit of seconds, the concept of minutes and seconds is initially established, and knowing that 1 minute =60 seconds, some simple calculations are made on time.

6. Preliminary experience: Some events are certain and some are uncertain; Be able to list all possible results of simple experiments, know the possibility of events and describe the possibility of some simple events.

7, can find out the simple arrangement number and combination number of things, form the consciousness of finding mathematics and thinking about problems in life, and initially form the ability of observation, analysis and reasoning.

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

9. Develop the good habit of working hard and writing neatly.

10. Experience the close relationship between mathematics and daily life, and initially form the ability to comprehensively use mathematical knowledge to solve problems.

1 1. Improve the classroom written calculation teaching, reflect the idea of calculation teaching reform, and attach importance to cultivating students' sense of numbers.

12, in the teaching of teaching quantity and measurement, we should connect with the reality of life and attach importance to students' feelings and experiences.

13. In the teaching of space and graphics, we emphasize practical operation and independent exploration, and strengthen the cultivation of estimation consciousness and ability.

14, which provides students with rich realistic learning materials and reflects the formation process of knowledge.

15, gradually cultivate students' comprehensive ability to use knowledge, and pay attention to the cultivation of emotion, attitude and values.

Carefully design each class, stimulate students' interest in learning, and let students have a pleasant learning experience in mathematics.

In teaching, we should pay attention to the learning mode of independent exploration and cooperative communication, so that students can learn mathematics in the atmosphere of "doing mathematics", "playing mathematics" and "using mathematics", and each student can make progress on the original basis.

Pay more attention to students with learning difficulties, pay attention to let good students drive them, help them, strengthen contact with parents and promote their progress.

For gifted students, we should broaden their knowledge as much as possible, improve their thinking ability and let them study hard.