Area and Perimeter Geoboard Tangram Conic Sections Surface Area and Volume Astrolabe Hypsometer Conversion Chart Napier’s Bones Platonic Solids Pentagrams and the Golden Ratio Greatest Common Divisor by Geometry Special Geometric Curves Soap Films Fraction Chart (A Teaching Aid) Property of circles (A Teaching Aid) Place Value Snake Seven Divisibility Disc Trigonometry Puzzle Jigsaw puzzle- Surds Missing Square Missing Line Topology Games and Puzzles Pythagoras Theorem Game Magic Mind Reader Mind Reader Tic-tac Multiply A Combination Book Dominoes Pentaminoes Number Line Checkers Factor Game Tower of Hanoi Soma’s Cube L-Game