Forest industry professionals make measurements in their work using tools including the Clinometer and the Biltmore Stick. These tools are based on the concepts of similar triangles and trigonometric ratios in a right triangle. This activity uses Cabri Jr. Geometry software to model and solve forestry problems.
Before the Activity
If needed, introduce the features and tools of Cabri Jr. with the file "Getting Started with Cabri Jr."
During the Activity
The Teacher pages of the file give Answer Keys and a "Discuss with Students" section reviewing scale drawings and proportions.
The Student pages of the file include the Technology Activity, Extensions, and Resources.
After the Activity
Review student answers:
As a class, discuss questions that appeared to be more challenging
Re-teach concepts as necessary