2. Use images or pictures to express your central idea.

3. Use colors in the drawing process.

4. Connect the central image with the main branch, then connect the main branch with the secondary branch, then connect the tertiary branch with the secondary branch, and so on.

5. Let the branches of the mind map bend naturally, not like a straight line.

6. Use one keyword per line.

The first volume of primary school mathematics textbook published by People's Education Press consists of eight chapters, focusing on decimal multiplication, location, decimal division, possibility and other knowledge. There are many knowledge points involved. For example, in the chapter of decimal multiplication, we need to learn the knowledge of decimal multiplication by integer, decimal multiplication by decimal, approximate value of product and so on.

Summarize the knowledge points into mind map, and use the divergent relationship of mind map to summarize the knowledge points to help students learn systematically.

Mind mapping is an effective and efficient way of thinking. Apply it to the thinking "map" of memory, learning and thinking. Conducive to the divergent thinking of the human brain. Mind mapping has been widely used around the world. Singapore's Ministry of Education has listed mind mapping as a compulsory subject in primary schools, and a large number of top 500 enterprises are also learning mind mapping. China has been using mind mapping for more than 20 years.