At the end of this class, students will be able to correctly solve indirect measurement problems using rational numbers and the shadow reckoning method. The will also be able to demonstrate their skills by measuring two objects and their shadows.
After viewing the following YouTube video below, students will discuss ways in which this process could be used in the real world. Students will then form groups to measure classroom objects using this method.
This video solves an indirect measurement problem. This technique can be used to find the length of very large objects without traditional measuring instruments through the use of similar triangles.
Solves an example indirect measurement problem.
After viewing the video, use the indirect measurement method to determine the height of a local landmark in your community.