Montessori Geometry Cabinet Cards (solid, thick, thin-line) - A full set of solid, thick-line, and thin-line cards for use with the Montessori Geometry Cabinet (including the presentation tray). Shapes included: circle, curvilinear triangle, oval, ellipse, quatrefoil, square, rectangle, trapezoid (trapezium), rhombus, parallelogram, kite, chevron, quadrilateral, pentagon, hexagon, heptagon, octagon, nonagon, decagon, equilateral, acute angled isosceles, right angled isosceles, obtuse angled i