"SI Manufacturing"

This colorful teaching model is designed specifically for students of all ages.

Learn Cell Structure With Hands-On Foam Pieces

Numbered inserts and a lockable lid make it easy to keep track of your classroom calculators.

Teach Students About Measurements with these Handy Sets

Chemical and Heat Resistant to 80°C.

Plastic D-cell battery holder with male and female button snaps allowing for instant connections with others.

Demonstrate magnetic fields on your desk or overhead with this clear container of iron fillings. Using magnets, you can show students how the fillings move and cluster together.

Complete electricity kit in a convenient storage case.

This package of plastic pulleys contains 25 each of 20, 30 and 40 mm diameter pulleys with 3.2 mm bores and one 10 mm pulley with a push fit to a 2 mm motor shaft.

Great for All Grade Levels!

This is made of plastic.

It is versatile and easy to use, this precision tool allows you to draw circles, straight lines, and complex geometric shapes with accuracy and artistry.

An excellent ruler for beginners. This new ruler has ¹/₈, ¹/₄, and ¹/₂" scales on one edge and mm and cm markings on the other edge.

Durable plastic with metal fahnstock clips for wire attachments.

Versatile teaching kit contains enough materials for the whole classroom to learn about and experiment with a variety of pulley configurations. Because these activities are hands-on, students get a real feel for the forces at work.

A Fast and Simple Way to Measure Long Distances.