How do we define the slope of a line?
The coordinate plane
The coordinate plane, labelling each point in the plane with a pair of numbers (coordinates), allows us to … Read More
Tag: congruence
What does it mean for two line segments OR triangles OR other subsets of the plane to be “the same shape”?
The concept of “shape”, the concept of “similarity”
… Read MoreThe main issues [with TSMs treatment of geometry] may be summarized as follows:
- The high school geometry course cannot be the only place in the K–12 curriculum where definitions, theorems,
