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The second grade mathematics thinking guides the fourth grade.
The mind map of unit 1 to 4, the mathematics in the first volume of Grade Two is as follows:

The steps of mind mapping in the first volume of mathematics learning in senior two;

1, number and counting: including the understanding of logarithm, the order of numbers, the comparison of numbers and basic counting methods.

2. Addition and subtraction: including the concept of addition and subtraction, simple addition and subtraction operations, and the nature of addition and subtraction.

3. Position and direction: including the understanding of spatial position, the use of directional words, simple direction judgment, etc.

4. Classification and sorting: including classification of objects, sorting by rules, etc.

5. Graphic-to-graphic conversion: including the understanding of common two-dimensional graphics, the identification of the same and different graphics, and the symmetry of graphics.

6. Time: including the concept of time in daily life, the understanding of clocks and watches, the order of time, etc.

7. Length and weight: including the understanding and simple comparison of length and weight.

Matters needing attention in making the first volume of mathematical mind map in the second day of junior high school

1, Understand the knowledge points of mathematics: Before making mind maps, you need to understand the knowledge points involved in the first volume of the second-grade mathematics textbook, including numbers and quantities, addition and subtraction, triangles, rectangles and so on.

2. Combing knowledge points: Combing the learned knowledge points can be classified according to chapters, questions and difficulties.

3. Choose the right node: The purpose of mind mapping is to present knowledge points graphically, so you need to choose the right node to represent each knowledge point. Nodes can be words, pictures or symbols.

4. Keep the hierarchy clear: When making mind maps, keep the hierarchy clear so that readers can clearly see the relationship and logic between knowledge points.

5. Highlight the key points: Highlight the key knowledge points in the mind map, which can be marked with different colors and font sizes to facilitate readers' understanding and memory.

6, concise and clear: mind maps should be concise and clear, try to avoid lengthy text descriptions and complex graphic design.

7. Add examples appropriately: Adding some examples to the mind map can help readers better understand the application and practical significance of knowledge points.