Rattleback – Plastic Assorted Colors – Classroom Pack of 30 with Teacher’s Guide
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Rattleback – Plastic Assorted Colors – Classroom Pack of 30 with Teacher’s Guide

$32.47

Rattleback – Plastic Assorted Colors – Classroom Pack of 30 with Teacher’s Guide

10 in stock

SKU: AS9222-23PK30 Category: Tags: , ,
Description

Rattleback – Plastic Assorted Colors – Classroom Pack of 30

with Teacher’s Guide

 

The Rattleback is a long and thin half-elliptical shape formed in plastic so that it has a slightly offset center of gravity. This offset gravity causes the Rattleback to spin in directional rotation of choice, usually counterclockwise. If you attempt to spin the Rattleback in the clockwise direction, strong preference will cause the Rattleback to “rattle” back and forth after few rotations, stopping and then reversing the rotation back to the preferred counterclockwise direction. The directional preference is so strong that if the Rattleback is at a standstill and you push down on one end it will begin turning.

  • Each rattleback measures approximately 98mm or just under 4 inches in length.
  • Comes in assorted colors
  • Teacher’s guide is included
  • Pack of 30
Additional Information
Weight 0.59 kg
Manufacturer

American Scientific

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