Overhead US Coin Set, Set of 45 transparent US Coins for use on the overhead projector. Both heads and tails are included for the penny, nickel, dime, quarter and half-dollar. Grades K-4
Overhead Math Resource Kit, include most popular overhead manipulative for teachers. Also included are fraction and decimal chart transparencies as well as 1 cm & 1in square graph transparencies
Ripple Tank, Overhead, Dimensions: 15.5inx12inx4in, 6V DC power source and an overhead projector are required, demonstrates the generation, propagation, reflection, interference and diffraction of waves
MicroDirect 1080p HDMI Handheld Digital Microscope, Sensor: 3.5 MP CMOS 1/3in High Speed Sensor, Pixel Size: 2.2 um x 2.3 um, with 10x to 220x power magnification, Capture 720p High Definition video at 30fps, Power: 1. 120V Power Adapter (5V-1A)