It looks so benign, but within this set is some amazing differentiatable geometric, mathematic and scientific learning. It includes laminated cards for size comparison and geometric solid labeling at two levels.
Tinker Tray Geometry
SKU: TTGL
$29.00Price
Loose parts play for experimentation, balancing, building
Identification of spheres, cylinders, cubes and ovoids
Sizing of small/medium/large
Sizing of smallest/smaller/small - large/larger/largest
Counting
Sizing from smallest to largest & largest to smallest
Horizontal and vertical sizing
Logic/reasoning: This one is the tallest, but this one is the biggest
Quantification more/less, most/least
Patterning
Graphing
Sorting by 1 or 2 traits
Venn diagramming