This affordable group set includes 5 starter balances and set of 100 interlocking cm cubes. Grades K+.

Color-coded spring scales used for both force and mass measurements. Each scale is calibrated in both Newtons and grams.

Includes one set of demo connecting bars with four each of 6 different lengths and 2 protractors as well as 24 activity cards. Grades K+.

Blank tiles to be used with Gallon/Fraction Balance. Set of 31

Includes 10 student sets, 1 transparent set and activity cards all stored in reusable container. Grades K+.

Includes one connecting bars student set with 12 each of 6 different lengths and 2 protractors as well as 24 activity cards. Grades K+.

This set of 24 activity cards is a great cross-section of the possibilities of using the connecting bars in your geometry or measurement units. Includes 24 activity cards grouped into grade levels K-2, 3-5 and 6-8. Measure 4.8” x 5.9” (12cm x 15cm). Grades K-8.

Explore plane geometry on the desktop with connecting bars that are able to snap together at any angle end-to-end. Includes 12 each of 6 different lengths that are color-coded and range from 5cm to 14.14cm. Investigate angles in polygons with 2 included protractors that also connect to the connecting bars. Grades K+.

A double-sided integer number line ruler with a colorful graphic vertical number line on one side and a text side with a horizontal number line. Both number lines have numbers -50 to 100 and have a dry erase surface. A valuable visual tool to help students construct understanding and form generalizations about integer arithmetic concepts. Includes ten 18” rulers and a teacher guide. Grades 1+.

6”/15cm ruler is scaled in 1/8” on one edge and in mm on the other.

This 6” protractor has an open center and measures 180°. It has a beveled edge to allow for ease of reading angles and drawing arcs. Also includes 6” ruler along the bottom and cm ruler on top edge.

The circular protractor has 360° design to measure a full circle. Hold down the center to create circles with a radius from 15 to 45 mm. Has four cut out circles with the diameters 10, 15, 20 and 25mm. Measures 4.7” (12cm) in diameter.

Measurement