non euclidean geometry

Top Trumps® STEM Bundle 2 Engineering, Electricity & Magnetism, Peculiar Problems Card Games

Think Box Inventor's Box: Science Kit for Kids, Toys for 8 Years Old, Includes Storage Case & Wires

Toysmith 3-D Mirascope Instant Illusion Maker: Science Educational Toy with Experiment Guide

Learning Resources Light N Strike Electronic Math Game, Ages 6+

Computational Geometry - 3rd Edition by Mark de Berg & Otfried Cheong & Marc Van Kreveld & Mark Overmars (Paperback)

Epoch Games Jurassic World T-Rex Escape, Tabletop Action Game, Ages 6+

Ravensburger ThinkFun FreeFall Logic and Skill Board Game: Educational Creative Thinking, 1+ Players, Includes Game Pieces & Balls

Kaplan Early Learning Nature's Geometry: Toddler Loose Parts STEM Kit

12 Days of Crystal Science

Kaplan Early Learning Loose Parts STEM Kit: Inclined to Exploration

Riemannian Geometry - (Mathematics: Theory & Applications) Annotated by Manfredo P Do Carmo (Hardcover)

Math 4 Love Prime Climb Math Game

Sparkle Formations: Crystal Unicorns

National Geographic Magnetic Putty: Educational Science Toy with Activity Guide for Creative Thinking

Kaplan Early Learning STEM Builder Series Build an Animal

The Invisible Power of Mathematics - (Copernicus Books) by Giovanni Samaey & Joos P L Vandewalle (Paperback)

The Riemann Legacy - (Mathematics and Its Applications) by Krzysztof Maurin (Hardcover)

Educational Insights Kanoodle Pyramid 3D Brainteaser Game: Shapes & Colors Problem Solving Board for 1 Player

Brain Gaming for Clever Kids - by Gareth Moore (Paperback)

Super Mario Adventure Game Deluxe: Brainteaser by Epoch Everlasting Play

We're Not Really Strangers Don't Overthink It Card Game