The mind map of unit 123 in the first volume of the fourth grade of Beijing Normal University Edition can be drawn according to the knowledge of unit 123. But there is no unit 123 of the fourth grade of Beijing Normal University before the reform version, which is to know bigger numbers, lines and angles, and multiplication, and then design the mind map in the form of a table, or in the form of a flowchart or other graphics.

Then you can add the relevant knowledge in the unit, you can add the basic knowledge, and you can also add the key knowledge of the unit. When drawing a mind map, the most important thing is to add the key knowledge, and the decoration can be less, as long as it is slightly modified.

The most important thing is to make the picture clear, so that students can see it more clearly. Therefore, the above is a method of drawing in Unit 1, North Fourth Edition 123 of Grade Four, and a process of drawing mind maps.