Students learn experiential geometry and pre-algebra in both English and Spanish using interactive 3-D models and activities in the McGraw Hill AR app. Imagine learning how to determine the slope of a ...

Those of you whose math careers peaked in geometry—with reliable theorems offered a degree of predictability in an otherwise uncertain teenage world—might find a new show of strangely animate and hard ...

In the third century BCE, Apollonius of Perga asked how many circles one could draw that would touch three given circles at exactly one point each. It would take 1,800 years to prove the answer: eight ...