heart
Solid of Constant Width
Geo-Sphere
Nonstop Sorting Machine
Manipulative snap-together sprues to create polygons, polyhedra, molecules etc
Volumetric Nesting Cubes
Surface Development of a Truncated Cone
conic cone
Configurable Galton Board
Proof of the Pythagorean theorem using tangram
Torque tester for stepper motor
Gear Board
7 in 1 Slide Caliper
abc tiles
Circle Flower
Pentominoes for the MakerBotAcademyMath
MorphGraph
Binary coded decimal - BCD convertor
Empirical probability study
Poloh Calculator
TABLA REDONDA
Napier's Bones
Normal distribution sliced to show "68-95-99.7 Rule"
Bump Blocks: Counting and Addition Manipulatives
CoinCounter
Physical Proof For Geometric Problem
Pizza Manipulatives
Cartesian Plane Diagram
Wrap Up Key
Like Terms
Nut and Bolt
Unit Circle - manipulative for deriving the sine wave
Battle-shape
Cubes in Cubes
Operation Board
Series Puzzle
Counting Body Parts
Abacus Simple
Shells
