THINKMETRIC

Measuring devices for distance, volume, and area, namely, folding rulers, tape rulers, other graduated rulers, graduated and ungraduated containers; educational software featuring instruction in understanding the metric system; interactive multimedia software recorded on CD-ROM and DVD for understanding the metric system; downloadable computer software to aid in understanding the metric system; and electronic publications recorded on computer media, namely, periodicals and instructional texts describing the metric system

Ungraduated rulers, demarcated squares, and non-demarcated squares made of plastic, wood, and metal for teaching and learning purposes