Base Ten Dual Number Line Sand Trays Created in collaboration with the

Created in collaboration with the Smithsonian Institution

Pieces range in size from the smallest

When your little one has finished playing

or otherwise upset your well-laid plans

SKU: ERSTCR77326

Base Ten Dual Number Line Sand Trays Created in collaboration with theMPN: 005026 UPC: 706406116320 This versatile tool, designed to be used with standard 1 centimeter base ten blocks (units and rods of 10), helps students visualize and solve operations, ratio, and percent problems. The durable 1 cm foam number line is 4" high by 21" long and has dual channels that can hold up to 50 base ten units each and a dry erase writing surface. The dual channels provide students the ability to represent and model equations and