Shape
Copyright David & Cynthia Thomas, 2009
Surface Area and Volume--Directed Activity: The Surface Area of
an Open Top Box
Focus |
Surface area of an open top box. |
Technologies |
The Geometers Sketchpad and model 6_BoxSurfArea |
Background |
Figure 6.12: Surface of an Open Top Box |
Tasks |
Using The Geometers Sketchpad and model 6_BoxSurfArea, answer the following questions · As you change the size of the corner cut, what happens to the surface area? · Is there a maximum surface area? A minimum surface area? · How would you employ the model to develop a deep understanding of the concept of surface area of rectangular solids? · How would you use the models to help students discover and test a formula for surface area? |