Graphs are a great way to see the surface area of flat shapes. Here are some important points:

1. Comparing Areas:

   • Bar graphs can show the surface areas of different shapes.
   • For example, the surface area of a square with side length (s) is found by using the formula (A = s^2).

2. Understanding Relationships:

   • Line graphs can help explain how the size of a shape connects to its surface area.
   • For a rectangle, if (l) is the length and (w) is the width, the area is calculated with (A = l \times w).

3. Visualizing Shapes:

   • You can show area as a shaded part on a graph. This helps students see the differences in surface areas easily.

By using these tools, students can get a better grip on geometric ideas.