Sir Cumference, Radius, and Sir Vertex search for Edgecalibur, the sword that King Arthur has hidden in a geometric solid.

"In Junk drawer geometry, educator Bobby Mercer provides readers with 50 creative geometry project ideas for engaged learning. Each activity includes a materials list and detailed, step-by-step, instructions with illustrations."--

Explains the principles of plane geometry and includes practice exercises and model problems.

The three books in the popular Shapes in Math, Science and Nature series, Squares, Triangles and Circles, provides engaging, well-written, interactive content that helps make geometry and measurement concepts graspable and even enjoyable, while also offering opportunities for lessons on a range of subjects from science, technology and engineering to social studies, art, and architecture. There are also numerous ideas for hands-on-learning activities...

To earn his knighthood, Radius must find and rescue a missing king. His father, Sir Cumferance, and his mother, Lady Di of Ameter, give him a circular medallion (a protractor) that he uses to find his way through a maze of many angles.

Rhyming text provides an introduction to geometry, including lines, types of angles, measuring angles, and symmetry.

"An eye-opening narrative of how geometric principles fundamentally shaped our world"-- A history of geometry. An eye-opening narrative of how geometric principles fundamentally shaped our world. On a cloudy day in 1413, a balding young man stood at the entrance to the Cathedral of Florence, facing the ancient Baptistery across the piazza. As puzzled passers-by looked on, he raised a small painting to his face, then held a mirror in front of the...

Through a rhyming game and brilliant photographs, children learn what is square in the world.