Lesson Plan

Fundamental Theorem of Similarity (FTS)

Curated and Reviewed by Lesson Planet

How do dilated line segments relate? Lead the class in an activity to determine the relationship between line segments and their dilated images. In the fourth section in a unit of 16, pupils discover the dilated line segments are parallel to the original, and the scale factor is apparent in all the lengths.

10 Views 13 Downloads
CCSS: Designed
Additional Tags
Instructional Ideas
  • Use geometry software to get precise measurements
Classroom Considerations
  • Requires a piece of lined paper, a centimeter ruler, a protractor, and a basic calculator for each class member
  • Expects knowledge of dilations
Pros
  • The resource contains images of examples of individual work
  • Teacher notes provide information to the teacher about the precision of measurements
Cons
  • None
Common Core