Triangles and Quadrilaterals
In this polygon instructional activity, students classify triangles and quadrilaterals according to their characteristics. This one-page instructional activity contains 5 multiple-choice problems.
7th - 9th Math 5 Views 16 Downloads
Criteria for Triangle Congruence
This is an excellent lesson plan for exploring the criteria for triangle congruence and teaching to the Common Core. After a review of the definition of congruent triangles, learners work in small groups to rotate through six stations....
9th - 12th Math CCSS: Designed
The Mathematical Secrets of Pascal’s Triangle
This modern animation and discussion of the ancient secrets of Pascal's triangle manages to be topical, engaging, and mathematically deep all at the same time. A great introduction to the power of number theory across multiple math...
5 mins 7th - 12th Math CCSS: Adaptable
Proofs into Practice: The Pythagorean Theorem in the Real World
As an introduction to the instructional activity, learners verify the Pythagorean theorem with a hands-on proof. Then, pupils use the theorem to determine whether three side lengths could form a right triangle and choose one of two...
8th - 12th Math CCSS: Designed