GEOMETRY A2 B2 C2
AlphaShapes™ by Rosamond Welchman
Discover the properties of polygons and circles with this specially designed set of 52 shapes. The pieces are interrelated—convex and concave, regular and irregular, curved and noncurved, tessellating and nontessellating. Letters A–Z identify the unique shapes, and all angles are numbered so students can easily investigate a variety of geometric shapes and ideas. And, because the shapes are transparent, they can be used for modeling geometric discoveries on the overhead. Contains two of each shape, one in green and the other in orange, and the Learning About…®
AlphaShapes
Not for < 3 yrs. A1-034197 Set of 52 $16.95
Tracing Shapes Set Trace and identify plane figures from circles to decagons. The Tracing Shapes Set allows students to explore two-dimensional geometry concepts, including area, perimeter, center points, and shape identification. SMALL PARTS. (1) Not for < 3 yrs. A1-41574 Set of 20 $13.95
pes Activity Guide. SMALL PARTS. (1) TS. (1)
The square of the hypotenuse of any right triangle is equal to the sum of the squares of the other two sides.
T o
a + b = c 2 2 + b2 does indeed equal c2 . 8½" tall. A1-9406 Pythagorean Theorem Model $15.95
Proofs of Pythagoras Explore five proofs (two by inspection, three algebraic) of the Pythagorean theorem with three transparent plastic models. Set includes the Pythagorean Theorem Model above and two models (A and B) using triangles. They project on the overhead and are a hands-on way to demonstrate that a2
+ b2 B = c2 . Includes
Teacher’s Notes and snap-on covers to hold the pieces in place. • Grades 7 and up A1-1807 Proofs of Pythagoras Set
$24.95 2
Pythagorean Theorem Model To graphically illustrate Pythagoras’s theorem, first measure the two smaller squares against the legs of the triangle, then rearrange the seven transparent pieces to fill the larger square on the right, showing that a2
C2 A A2 B2
Scratch Your Brain®
Geometry
These fun and challenging activities, puzzles, and games develop problem solving skills and help boost students’ problem- solving confidence and test scores. Activities are sequenced by difficulty in each chapter to allow for gradual geometry skill building. 136 reproducible pages. • Grades 8–12 A1-77149
$21.95
Polygons+ Power™
Pack
Master the properties and characteristics of polygons and circles by using triangles, quadrilaterals, circles, and other shapes to recognize, identify, design, measure, sort, and compare. Includes 70 plastic shapes (64 polygons, 6 circles), 96 Identification Cards, an Activity Guide, 18 Activity Cards, and a handy Wall Chart for easy reference. May be used on the overhead. • Grades 5–11 A1-485 Polygons+ Power Pack
$24.95
Buy the Classpack and save! Polygons+ Power™
Classpack
Includes 6 packs. A1-75421 Polygons+ Power Classpack $149.95
For complete product safety information, see page 67.
Advanced Level D-Stix Kit Simple but functional color-coded plastic rods and multi-pronged plastic connectors let students create basic polyhedra, structures in solid geometry, or advanced three-dimensional geometric designs. Comes with an instruction sheet. SMALL PARTS. (1) Not for < 3 yrs. A1-4842 370 pieces
$46.95 Find more products and order online at
www.etacuisenaire.com 33
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