A unique design for constructing square and cubic meters when using corner inserts (11221). Calibrated in dm, cm and mm and extend to the edges for highly accurate measurements.

Designed to fit Triangle Meter Sticks for making square and cubic meters. Set of 8. Meter sticks not included.

Same as our Intermediate Ruler with a chart showing proper symbols for units of length, area, mass and volume on the reverse. Each. Grades 6-8.

Same as our Intermediate Ruler with a chart showing proper symbols for units of length, area, mass and volume on the reverse. Set of 10. Grades 6-8.

Designed to show the relationship between dm, cm and mm on one edge and calibrated in mm on the other edge. Grades 6-8.

As students realize the need for finer calibrations, our Junior Ruler is calibrated in 0.5 cm and numbered each cm on one edge and calibrated in mm on the other edge. Each. Grades 3-6.

As students realize the need for finer calibrations, our Junior Ruler is calibrated in 0.5 cm and numbered each cm on one edge and calibrated in mm on the other edge. Set of 10. Grades 3-6.

One edge has cm and mm, and the other has imperial markings. Each. Grades 6-8.

Graduated in cm on one edge and alternate colored cm squares on the other edge. Each. Grades K-3.

Graduated in cm on one edge and alternate colored cm squares on the other edge. Set of 10. Grades K-3.

Durable and flexible aluminum dead length rulers. Calibrated with 1/8" and 1/16" graduations on one side and mm and cm on other side. 12" long.

Durable and flexible aluminum dead length rulers. Calibrated with 1/8" and 1/16" graduations on one side and mm and cm on other side. 18" long.