SEATTLE — When the public gets its first peek at Washington’s proposed new grade-by-grade math learning requirements, what they’ll find most surprising is how easy they are to understand, the ...

Materials were written for an entire year's course in geometry in which transformations were used to develop the concepts of congruence, similarity, and symmetry, as well as being a vehicle for proof.

This is a preview. Log in through your library . Journal Information The Mathematical Gazette is the original journal of the Mathematical Association and it is now over a century old. Its readership ...