Tessellations' Geometrics sets are made of durable, nontoxic, and quiet foam and contain lesson material for a range of grade levels.
Conic Sections
This set contains four cones cut four different ways to reveal the different conic sections - circle, ellipse, parabola, and hyperbola. Four reproducible worksheets cover various properties of the conic sections, including their descriptions using Cartesian and polar coordinates, their foci, and their eccentricity. Cones measure 2-3/4" across the base and 4" in height. Grades 7-12.
Fifteen different foam geometric shapes. Angles and edges are labeled on the frontsides to facilitate classroom discussion. The names of the shapes and their areas are printed on the backsides. The thickness of the pieces is 0.2" (0.5 cm), and the circle diameter is 4" (10 cm).
This set contains six foam shapes. Each shape has a smooth side and a textured side, so that the tactile experience of handling the shapes can reinforce students' learning. Different colors are used for shapes with curved vs. straight edges. The set includes instructions and a reproducible worksheet. The thickness of the pieces is 0.4" (1 cm), and the circle diameter is 4" (10 cm).
OctaBlocks are the geometric blocks that really stack up! Six different shapes of prisms - based on two sizes of right triangles, squares (cubes), rectangles, rhombi, and octagons. OctaBlocks are more amenable to construction of true 3-dimensional structures than block sets based on hexagons and equilateral triangles. The edge lengths are 1.6" (4 cm) for the cubes.
Eight different foam geometric solids. The diameter and height of the cylinder are 1.8" (7 cm) and 3.6" (14 cm). Comes with instructions that include seven worksheets.
