# Surf for More Math

## Lesson 2 **- Exploring Surface Area of Polyhedrons**

To encourage your child to have fun on the Web while learning about Exploring
Surface Area of Polyhedrons, here are some games and interactive activities
they can do on their own or in pairs.

**Goal**

Determine the surface area of triangular and rectangular prisms.

**Builds Upon**

Student Book pages 324-325

**Instructions for Use**

** **

Surface
Area of a Rectangular Prism helps your child find the surface area
of a rectangular prism.

To use Surface Area of a Rectangular Prism , click the 'Start' button.
Input the numbers in the proper text box to find the surface area. Click
the 'Check Answer' button to see if the answer is correct.

Surface
Area and Volume of a Rectangular Prism lets your child observe the
changes in surface area and volume as your child changes the dimensions
of the prism.

** **

To use Surface Area and Volume of a Rectangular
Prism, drag the pink dots to change the dimensions of the rectangular
prism. Notice the changes in area and volume as you change the dimensions.

Surface
Area and Volume lets your child manipulate three-dimensional shapes
to estimate surface area and volume.

To use Surface Area and Volume, click on the prism and drag it to see
the front, side and top views. Using the three buttons - front, side
and top views - rotate the prism to observe all three axis's - y axis,
x axis, and z axis.

To change the dimensions of the rectangular prism, adjust the height,
width, and depth sliders. The volume and surface area of the shape are
displayed in the lower right portion of the applet. By changing the
dimensions of the shape, notice the surface area and volume change.