The three most basic shapes -- squares, triangles and circles -- are all around us, from the natural world to the one we've engineered. Full of fascinating facts about these shapes and their 3D counterparts, Shapes in Math, Science and Nature introduces young readers to the basics of geometry and reveals its applications at home, school and everywhere in between. Puzzles and activities add to the fun factor.
Grades 4-7. This bountiful compendium brings together three colorful books originally published separately in paperback: Circles (1993), Triangles (1994), and Squares (1996). Each section leads off with a close-up look at its subject using a geometric figure with arrows pointing to nearby terms and definitions. The section on squares includes square numbers, square-based optical illusions, cubes in architecture, and instructions for making a tangram. The next section includes a wide assortment of triangle-related topics, from the Egyptian pyramids to the Bermuda Triangle, from bridge construction to fractals. Similarly, the third section explores circles and spheres as well as concepts such as pi and Fibonacci numbers. Ink drawings with watercolor washes brighten each page and clarify the concepts and explanations in the text. Precise yet playful in approach, this book supplies a good deal of basic information while entertaining readers with short narratives, challenges, and hands-on activities. An engaging introduction to basic geometry.