# Surf for More Math

## Lesson 3 **- Volume of Rectangular and Triangular Prisms**

To encourage your child to have fun on the Web
while learning about Volume of Rectangular and Triangular Prisms, here
are some games and interactive activities they can do on their own or
in pairs.

**Goal**

Calculate the volume of rectangular and triangular prisms.

**Builds Upon**

Student Book pages 326-328

**Instructions for Use**

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.

** **

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.