BOOKS FOR CHILDREN, EDUCATION, AND HOMESCHOOLING
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Key to Geometry

key2_geo.gif (23196 bytes)Key to Geometry offers a non-intimidating way to prepare students for formal geometry as they do step-by-step constructions. Using only a pencil, compass, and straightedge, students begin by drawing lines, bisecting angles, and reproducing segments. Later they do sophisticated constructions involving over a dozen steps and are prompted to form their own generalizations. When they finish, students have been introduced to 134 geometric terms and are ready to tackle formal proofs. For grades 4-12

 

 

 

Kgeom68471 Book 1: Lines and Segments-BTH-306  $3.38-D
Kgeom68472 Book 2: Circles-BTH-307 $3.38-D
Kgeom68473 Book 3: Constructions-BTH-308  $3.38-D
Kgeom68474 Book 4: Perpendiculars-BTH-309 $3.38-D
Kgeom68475 Book 5: Squares and Rectangles-BTH-310 $3.38-D
Kgeom68476 Book 6: Angles-BTH-311 $3.38-D
Kgeom68477 Book 7: Perpendiculars and Parallels, Chords and Tangents, Circles-BTH-312 $7.88-D
Kgeom68478 Book 8: Triangles, Parallel Lines, Similar Polygons-BTH-313 $7.88-D
Kgeom68483 Answers and Notes for Books 1-3-BTH-314 $4.46-D
Kgeom68484 Answers and Notes for Books 4-6-BTH-315 $4.46-D
Kgeom68485 Answers and Notes for Book 7-BTH-316 $4.46-D
Kgeom68486 Answers and Notes for Book 8-BTH-317 $4.46-D
Kgeom53101 Set of Books 1-8-BTH-4975 $33.26-D

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