Teaching Tank® & Discovery Books© Item: tt-exp Title: Teaching Tank Expansion Kit This kit allows you to turn the "thin" version of the Teaching Tank® into a tank that is much like an aquarium in about three minutes. There are about 12 lessons in each of Volumes 2 and 3 that require the larger tank. Grades: K - 12 Retail $20.50 Our Price $18.45 (You save 10%) Qty: Home   |   View Cart   |   Search   |   About Us Early Childhood   |   Kindergarten   |   Primary   |   Intermediate Customer Service: (866) 552-9590 © 1999-2008 ABC Teacher's Outlet, Inc. All rights reserved No content from the ABC Teacher's Outlet site may be used without written permission.