Author: Adler, David A.
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.
Kirkus Reviews (07/01/16)
School Library Journal (08/01/16)
Full Text Reviews:
School Library Journal - 08/01/2016 Gr 2–4—In this companion volume to his equally attractive and useful Triangles, Adler addresses the geometric world of circles. Starting with an introduction to the realm of noncircles (spheres, cylinders, cones, etc.), he then launches into circular spaces—complete with centers, points, diameters, radii, chords, and other potentially unfamiliar terminologies. Simple, logical activities are presented to drive concepts home, including popping into the world of pi and challenging young geometers to find the areas of a gaggle of bright circles. Miller's bright illustrations provide an excellent guide for the experimental activities. A glossary is appended, as are solutions to the challenges in the text. Math teachers and homeschooling parents will be delighted with this clear, concise overview of a familiar shape with unexpected details. VERDICT Extremely useful for the classroom at home or in school, and very approachable in its colorful minimalism.—Patricia Manning, formerly at Eastchester Public Library, NY - Copyright 2016 Publishers Weekly, Library Journal and/or School Library Journal used with permission.
Booklist - 11/01/2016 While most children’s books on circles simply identify the shape and give examples of it, Adler and Miller take things a step further by challenging elementary-school students to grapple with some basic geometric concepts. The book relies on readily available supplies (paper, a pencil, a ruler, scissors, a round dish, a can) for a series of activities designed to build a child’s understanding gradually, one step at a time. The concise, methodical text explains simple, hands-on ways to determine a circle’s diameter, radius, and circumference. Readers will pick up vocabulary such as arc, chord, sector, segment, and tangent along the way. Next, they’ll find out how to determine the value of pi and how to use it in finding the circumference and area of a circle. The clarity of the illustrations is achieved partly by leaving out extraneous details, but Miller’s brightly colorful digital pictures always project a sense of fun. A companion volume to the writer and illustrator’s Triangles (2014), this well-designed book offers an unusually clear introduction to the basic geometry of circles. - Copyright 2016 Booklist.