2. Secondly, draw a small box in the middle of the picture _ draw two children on the box, draw two square borders on the right side of the picture, connect the borders with the small box in the middle, and decorate some numbers and pencils on the right border.

3. Then draw three square borders at the bottom left of the picture. Draw a little girl on the left of the bottom border and a little rabbit on the top border to make the mind map more interesting.

4. Then you can start to color _ paint the middle box light yellow _ paint the lower border on the left light blue, paint the hair of the characters brown, paint the clothes yellow, red and blue, paint the pencils blue and green, and paint the bunny pink.

5. Colour the title red, blue and green _ Colour the left margin bright red and green, colour the right margin bright orange and yellow in turn _ Colour the surrounding numbers blue, green and red.

6. Finally, draw a grid line on the border and tidy it up, and a good-looking mathematical mind map will be completed.