Mindware KEVA Catapult theme-birds Have you ever wondered how

Have you ever wondered how American Indians lived long ago

The entire high-quality unit is made of sturdy polypropylene plastic

you'll receive something you won't find in any textbook—HOW to teach geometry successfully

5 magnetic strips per package

Large frames help teachers demonstrate base ten and operation concepts on the classroom whiteboard

Mindware KEVA Catapult theme-birds Have you ever wondered howBuild your own authentic catapult with planks, a little glue and the help of easy, step by step instructions. Then let the fun and experimentation begin! What shoots farther, a marshmallow or a piece of macaroni? How does the objects course change when you pull the arm back to different points? If you make the flight deck higher, how does it affect the hurl? Includes pre drilled planks, wood glue, leather strap, ruler, rubber bands, cup, 2 balls,