Everyone learns the number one rule about triangles in high school: the angles of a triangle add up to 180 degrees. But did you know that sometimes they don't? Triangles are much more interesting than ...

Big Idea – We can describe, measure, and compare spatial relationships. to build on students' knowledge of triangle and develop students' reasoning with properties of different classes of triangles to ...

to build on students' knowledge of triangle and develop students' reasoning with properties of different classes of triangles to develop students' language related to different triangles to engage ...

Often when describing patterns, they are placed in one of two categories: organic or geometric. Organic designs are ones ...

Click to open image viewer. Hinged Plane Dissection, Two triangles and one quadrilateral that can be arranged as two different triangles or a quadrilateral. CC0 Usage Conditions ApplyClick for more ...

If you take a moment to look around, you will find that our environment is a montage of geometric shapes. They are the building blocks of the world around us and are more important than we realize as ...