1. Preparation tools: brushes, drawing paper, pigments, etc.

2. Determine the theme: Choose a theme related to mathematics, such as My Kingdom of Mathematics.

3. Sketch: Draw a sketch on the drawing paper, including the main characters and scenes.

4. Fill color: according to the theme and situation, choose the appropriate color to fill.

5. Improve the details: After completing the basic drawing, you can add more details, such as numbers and graphics, to highlight the mathematical elements.

6. Inspection and improvement: Finally, check whether there are any mistakes or imperfections in the painting and make necessary adjustments.