Students will develop a more complete understanding of the area formula of triangles by exploring which changes in measurement result in a change in area. The activity will help students solidify their understanding of the relationship of a base and height or altitude of a triangle.
Before the Activity
See the attached activity PDF file(s) for detailed instructions for this activity. If using Cabri Jr.™, make sure it is installed on all students' calculators.
During the Activity
Teacher will monitor the students' construction.
After the Activity
Teacher will lead whole-group discussion to guide students in development of vocabulary used in assessment questions.