Overhead Materials

6" Professional Protractor

Open center with accurate 6" ruler. Permanent calibrations. More.

Flat Flexible SAFE-T® Ruler® – 6"/15 cm

A flat, flexible, plastic laminated ruler that can be used for desk work or on the overhead projector. Metric and English markings. More.

SAFE-T® Protractor

This 4", 180° protractor features a slotted separation. Lower scale reads right-opening angles, upper scale reads left-opening angles. Eliminates confusion of supplementary angles. Shatter-resistant orange plastic. More.

Flat Flexible SAFE-T® Ruler® – 12"/30 cm

A flat, flexible, plastic laminated ruler that can be used for desk work or on the overhead projector. Metric and English markings. More.

6-in-1 Geometry Instrument

Forms 30°-45°-60°-90° triangles and measures all angles up to 180°. Includes 1/32" and metric scales, four circles gauges, and parallel lines. More.

Overhead Two-Color Counters

Ideal for counting, arithmetic, and probability activities. Includes 25 red and 25 yellow transparent counters. Set of 50. More.

Overhead Geoboard – 5 x 5 Pin Array

Made from shatterproof clear plastic for use by individual students and on the overhead projector. 6" x 6". More.

Overhead Geoboard – Circular 24 Pin

Made from shatterproof clear plastic for use by individual students and on the overhead projector. 6" x 6". More.

Transparent Counters

Assorted colors make these 3/4" counters perfect for grouping and sorting activities. Set of 250. More.

Overhead Color Tiles – 1"

Transparent tiles in four colors (red, blue, green, and yellow). Designed for use with overhead projector activities. Set of 48. More.