Ready to exercise those brain cells? Professor Arthur T. Benjamin is renowned for his feats of mental calculation performed before audiences at schools, theaters, museums, conferences, and in this series, he shows that there are simple tricks that allow anyone to look like a math magician. Throughout these lectures, he shows how everything in mathematics is connected--how the beautiful and often imposing edifice that has given us algebra, geometry,...

Photographs of all kinds of familiar objects depict a variety of shapes, including cubes, cones, and spheres.

Presents objects with the shape of a heart, a triangle, a square and other shapes through paintings by such artists as Magritte, Escher, and Matisse.

"The characteristics of circles as well as how to find the radius, diameter, circumference, and area of a circle are explained and illustrated in this geometry picture book"--

"Newbery-Honor winning poet Joyce Sidman invites readers to search their worlds for round objects in nature. Illustrated with warm, intimate art by two-time New York Times Best Illustrated artist Taeeun Yoo, this fresh celebration shows why we love this shape best."-- As a little girl spends a day with her family, she finds round things all around her and explains why she likes them. This nonfiction picture book briefly explains why there are so...

The geometric concepts of circles and squares are shown in photographs of wheels, signs, pots, and other familiar objects.