Geometry
What is Geometry?
Geometry is the study of shapes, sizes, and positions of figures in space. It is broken down into two subcategories: Euclidean geometry and transformational geometry. Euclidean geometry is based on a set of axioms, or rules, that are accepted without proof. Transformational geometry is the study of how figures can be moved or transformed in space.
Geometry is a branch of mathematics that deals with the properties and relations of points, lines, surfaces, solids, and higher dimensional analogues. More advanced topics include coordinate geometry, three-dimensional geometry, topology, and Euclidean and non-Euclidean geometry.
Geometry is one of the oldest branches of mathematics, dating back to ancient Greece.
Geometry Resources
Sir Cumference and the Dragon of Pi
The picture book that gets elementary students to pi through a story rather than a formula. Reliable read-aloud for the circumference-and-diameter lesson.
Geometry: Seeing, Doing, Understanding
Harold Jacobs' classic high-school geometry course, built on discovery rather than memorized proofs. The one geometry text most veteran homeschoolers name first.
Key to Geometry, Book 7: Perpendiculars and Parallels, Chords and Tangents, Circles
The seventh workbook in the compass-and-straightedge series that teaches geometry by construction. Self-paced, consumable, and unusually gentle on math-anxious students.
Key to Geometry, Book 4: Perpendiculars
A three-dollar consumable workbook that teaches perpendicular constructions with a compass and straightedge. One of the cheapest genuine geometry resources in print.
Geometry Workbook For Dummies
The practice half of the For Dummies geometry pair: several hundred problems with fully worked solutions, not just an answer key.
Geometry For Dummies
Mark Ryan's plain-English geometry reference, aimed squarely at the student who has a textbook and still cannot follow the proofs in it.
Kumon Grade 6 Math
Comprehensive sixth-grade math workbook covering pre-algebra concepts, ratios, percentages, and geometry through Kumon's incremental practice method.
Sir Cumference and the First Round Table
A clever medieval-themed picture book that teaches geometry concepts like radius, diameter, and circumference through an entertaining Arthurian adventure story.
Beast Academy Guide 3A
A challenging and fun comic-book style math curriculum from Art of Problem Solving, designed to develop deep mathematical thinking in elementary students.
Lumos Functions and Geometry Skill Builder, Grade 8
This book is designed to help eighth grade students practice and master Functions and Geometry. Taking the time to study and practice each standard individually can help students more adequately understand and demonstrate proficiency of that standard...
Math-U-See Geometry
Geometry: Points, lines, planes, angles, circles, triangles, quadrilaterals, Pythagorean Theorem, conic sections, proofs and more. Math-U-See Geometry is typically a good fit for a student entering ninth grade; to find the Math-U-See level that best...
Geometry Textbook - Tutor in a Book
Need help with Geometry? Designed to replicate the services of a skilled private tutor, the new and improved Tutor in a Book's Geometry is at your service! TIB's Geometry is an extremely thorough, teen tested and effective geometry tutori...