In Unit 5 of Mathematics, the first volume of Grade Four, we will learn arithmetic and multiplication tables in mathematics. To understand these concepts, we need to use the form of mind map to help us organize and remember relevant knowledge points.

First of all, we can write down the theme of "mathematical operation law and multiplication table" in the center of the mind map, and then divide it into different branches according to the specific content, such as: addition law, subtraction law, multiplication law, division law and so on. We can list the corresponding knowledge points and examples under each branch. For example, under the law of multiplication, we can write the concepts of multiplication conversion law, multiplication combination law and multiplication distribution law, and then use specific mathematical expressions to illustrate the application of these laws, such as "3×4 = 4×3".

In addition to regular content, we can also add some related tips or memory methods. For example, under the rule of subtraction, you can write skills such as "borrowing subtraction" and "checking answers with addition". These tips can help students better understand the knowledge points related to memory.

Finally, at the end of the mind map, you can add the branch of "multiplication table". We can list the multiplication table of 1-9 under this branch, which can help students better remember multiplication formulas and formulas.

In short, by drawing mind maps, we can clearly organize and remember the knowledge points related to mathematical algorithms and multiplication tables, and at the same time, we can add relevant tips and multiplication tables, so that students can understand and master relevant knowledge more easily.