The understanding of 1 and number: it mainly includes basic concepts such as integer, decimal, fraction and percentage and their relationships. It can also be further subdivided into several sub-topics, such as reading, writing, comparison and arithmetic.
2. Graphics and geometry: It mainly involves the understanding and measurement of basic geometric figures, such as straight lines, rays, line segments, angles, right angles, acute angles and obtuse angles. It can also be further subdivided into sub-topics such as graphic understanding, graphic measurement and graphic movement.
3. Number operations: mainly including basic operations such as addition, subtraction, multiplication and division, as well as their combination and application. It can also be further subdivided into sub-topics such as operation method, operation sequence and operation law.
4. Statistics and probability: it mainly involves the collection, collation and analysis of data and the basic concept of probability. It can also be further subdivided into statistical graphs, statistics, probability and other sub-topics.
5. Practice and application: It mainly includes the application of mathematics in daily life and the ability to solve practical problems. It can be further subdivided into practical problems, solutions and application effects.
Matters needing attention in drawing mind map:
1. Clear the center: When drawing a mind map, you should focus on a central theme or goal, and ensure that the whole mind map is centered around this center.
2. Reasonable layout: The layout of mind maps should be reasonable, clear and easy to understand and remember. There should be an obvious hierarchical relationship between themes and sub-themes at all levels, so that readers can quickly understand the content of the whole mind map.
3. Use keywords: When drawing mind maps, try to use keywords or phrases instead of long sentences or paragraphs. This can better summarize the theme and make the whole mind map more compact and concise.
4. Color matching: Proper color matching can make mind maps more vivid and interesting, which is helpful for memory and understanding. Different colors can be used to distinguish different themes or categories.
5, detail processing: when drawing a mind map, pay attention to detail processing. For example, you can use arrows, lines, graphics and other elements to emphasize some important information or logical relationships. At the same time, we should pay attention to the font size, color and other details to make the whole mind map more perfect.