1, the first unit number in life. On the basis of children's counting experience, combined with the specific situation, we can understand the meaning of numbers within 10, recognize, read and write numbers from 0 to 10, use them to represent the number of objects or the order of things, initially understand the significance of cardinality and ordinal number, feel the close relationship between "number" and life, experience the fun of learning mathematics, and initially form good study habits.

2. Unit 2 Comparison. By comparing the specific figures in mathematical activities, we can understand ">,

Unit 3 "Addition and subtraction < 1 >". Through the process of abstracting the addition and subtraction formula within 10 from practical problems, explaining and applying it, I realized the significance of addition and subtraction, and initially felt the close relationship between addition and subtraction and life; Can correctly calculate the addition and subtraction within 10, and master the decomposition and synthesis skills of numbers within 10; By sorting out the addition and subtraction formulas and exploring the regular activities between them, we can cultivate and develop the sense of numbers.

4. Unit 7 Addition and subtraction (2). After experiencing the concrete operation and induction of the number representing 1 1-20, I initially realized that I could count, read and write in 20 days by using the decimal notation principle, master their order, compare their sizes, and think simply and orderly in combination with problem-solving activities. By communicating with my peers about my algorithm, I can understand the diversity of algorithms, learn to carry and abdicate within 20, gradually master addition and subtraction within 20, and solve simple problems, feel the close connection between addition and subtraction and daily life, and feel the rationality of mathematical thinking process.

Unit 5.8

(b) space and graphics

1, location and sequence of unit 5. Combined with vivid and interesting situations or activities, we can understand the position and order of front, back, up, down, left and right, and describe the relative position of objects by reusing front, back, up, down, left and right, thus establishing a preliminary spatial concept.

2. Unit 6 Understanding Objects. Through the observation, operation and classification of objects and models, the intuitive experience of simple geometry can be obtained, which can intuitively identify whether its shape is rectangular, square, cylindrical or spherical, and can intuitively identify three-dimensional graphics such as rectangular, square, cylindrical or spherical.