Triangles Card Sort

$3.50

Triangle Theorems & Properties - Practice / Review:

This sorting activity will help your students practice using properties of triangles. They will classify each triangle as equilateral, isosceles, scalene, or impossible using cards with a mix of given information (diagrams, side lengths, angle measures, and ordered pairs for vertices on a coordinate plane) so that they have to use a variety of skills and concepts to sort them properly.

The following concepts are used to determine types of triangles:
* Distance Formula
* Base Angles of Isosceles Triangles
* Triangle Sum Theorem
* Exterior Angle Theorem
* Triangle Inequality Theorem
* Vertical Angles

Here's what's included:
- 4 quick-fold pockets to hold sorted cards
- 30 cards with a mix of diagrams, side lengths, angle measures, and ordered pairs representing vertices
- 4 "answer cards" that list which cards should be in each pocket
- optional "sorting mat" for those who prefer a learning station format

Students will cut out and sort the cards into the correct pocket (equilateral, isosceles, scalene, or impossible/not a triangle). The pockets fit well on an interactive notebook page.

Then, hand out the answer/check cards. After students have verified that their cards were sorted correctly, the answer cards can be tucked into the back of each pocket. Students can re-do the activity as review any time.

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Reviews from other Teachers:

- The perfect activity to reinforce this concept!

- This was an excellent resource for practice! Some tricky problems that made students really think. Thank you!!

- Card sorts are so much fun with high school kids. Some of them think they are above hands on activities but then they get really into it.

- The kids have really enjoyed these and they are great for them to reference.

- This was a fun way for my students to practice their knowledge of types of triangles. Students were required to use knowledge previously learned, which I love. It is an awesome way to review concepts while still continuing on with concepts. Excellent resource.

- A great way to practice and review multiple topics!

- The instructions are very easy to follow. This is a great hands-on activity. Thank you for creating it!

- Cards sorts are my new favourite - I love the thinking and discussions that occurs when we do these.