…set includes a prism and 3 lenses—concave, double concave and double convex—all made of lightweight, shatterproof acrylic. Prism is 3".
With eased edges and a shatterproof design, our acrylic prisms are ideal for early science exploration. 4 3/4" long.
Kids find the volume of rectangular prisms & rectilinear figures—with durable manipulatives that provide tons of hands-on experience!…
As students piece together our easy-fitting sticks & connectors, they learn to build, identify and describe geometric shapes! 12…
…You get 20 composite wood blocks featuring handy plastic edges for extra durability. Rectangular prisms measure 5 1/2" x 11".