"SI Manufacturing"

Thick Plastic Ideal for Classroom Use.

Learn Cell Structure With Hands-On Foam Pieces

Four meter sticks in one and made of flexible plastic.

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.

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.

Teach Students About Measurements with these Handy Sets

Hands-On Investigation of Genetic Inheritance

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.

Great for All Grade Levels!

Break Down the Periodic table, Build Up Element Knowledge

Chemical and Heat Resistant to 80°C.

Observe the sky and identify various cloud types with this simple device.

Four gears of different sizes, perfect for any investigation or maker project.

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

A Fast and Simple Way to Measure Long Distances.

Flexible plastic meter stick marked in cm with 1 mm divisions on one side and with alternate-colored dm bars on the other, to show the relationships between units.