We found 1,491 resources with the concept triangles
9 mins 6th - 12th CCSS: Adaptable
New ReviewYoung mathematicians learn about the many theorems related to congruent triangles. The video allows them to stop and replay the content as many times as needed to take notes. Extra practice problems work as reinforcement for each skill...
Angle in a Semi-Circle – Proof
3 mins 6th - 12th CCSS: Adaptable
New ReviewYoung mathematicians observe a geometric proof using a short video. They see each part of the diagram clearly labeled and the simple math written off to the side. The new knowledge helps them solve additional problems independently.
Angles in a Triangle
5 mins 6th - 12th CCSS: Adaptable
New ReviewThe third angle's the charm. Viewers of a short video learn how to find the measure of the missing angle in a triangle. It uses an arithmetic process rather than an algebraic one, so younger learners have no trouble understanding the...
Find the Base of a Triangle Given Area
3 mins 7th - 10th CCSS: Adaptable
Base a lesson on an informative video perfect for expanding your class's knowledge of triangles. Young mathematicians watch a brief YouTube video that teaches how to solve for the base of a triangle given its height and area. It also...
Extended Performance Task: Painting a Wall Mural
5th CCSS: Designed
Boost math skills and healthy eating choices with a four-part assessment that tackles concepts such as graphing, fractions, and measurement. Scholars work independently and together to design a mural showcasing the current MyPlate food...
If at First You're Not the Same, Try Triangles! (Part 1)
11th - 12th CCSS: Adaptable
Congruent sides + congruent angles = congruent triangles. Scholars first create several triangles that satisfy given conditions using straws. They investigate the triangles to see which are congruent, and then they define what it means...
Area and Perimeter of Triangles: Lesson
3 mins 6th - 10th CCSS: Adaptable
Go from a parallelogram to a triangle. A segment of an extensive playlist on basic geometry shows the derivation of the formula for the area of a triangle. The resource works examples that require finding a missing side or height to...
Perpendicular Bisectors: Lesson
3 mins 8th - 11th CCSS: Adaptable
Get right up and split it in half. Using a diagram, the video provides the definition of a perpendicular bisector. The portion in a playlist on basic geometry explains perpendicular bisector of a segment and of triangle sides properties.