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 ...

The key characteristics of a rigid motion transformation are: Preservation of Distance: The distance between any two points ...

About twenty years ago, Olgur Celikbas attended a conference on algebra in Turkey. He and his then girlfriend, Ela Özçağlar, had recently graduated from college in Ankara; both had studied math. At ...

Combinations of Transformations: Sometimes, an image might show a combination of transformations, such as a translation ...

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.

What’s math got to do with it? Everything, says Dan Meyer, creator of the the popular blog dy/dan. Meyer is one of America’s most popular math educators—he has 43,400 followers on Twitter who are ...