This is a set of 12 task cards that students can use to practice working with similar triangles and the proportionality theorems.
Students should be familiar with: the ways to prove triangles similar, how to set up proportions to find lengths of sides of similar triangles, the side-splitter theorem, the angle bisector theorem, and the parallel lines theorem.
A worksheet that students can use to show their work and record their answers to the task cards is also included.
An answer key is included.
QR Codes are codes that can embed text, video, or website addresses. In this activity, students can scan the code to check to see if their answers are correct. The codes in this activity lead to text, so students do not need to connect to the internet to complete this activity.
You can obtain a QR Code Reader App for FREE for many mobile devices.
Do you want to prove the proportionality theorems first?
Proving the Proportionality Theorems
[Do you use the book Geometry for Enjoyment and Challenge? This set is aligned with section 8.5]