The Geometric Cabinet is a Sensorial material used with a long series of lessons that last throughout most of the Primary years (ages 3-6) in a Montessori classroom. The cabinet contains 6 drawers, each containing 4-6 cut-out wooden shapes with knobs on top.
Drawer 1: 6 circles, varying in diameter from 10 cm to 5 cmDrawer 2: 6 rectangles, varying in size from 10×10 cm to 10×5 cmDrawer 3: 6 different types of trianglesDrawer 4: 6 different regular polygons (pentagon to decagon)Drawer 5: 4 curvilinear figures (oval, ellipse, curvilinear, triangle, quatrefoil)Drawer 6: 4 rectilinear figures (rhombus, parallelogram, right trapezoid, and isosceles trapezoid)
￼The series of lessons starts with getting familiar with the 2D shapes by tracing them and finding the matching frame, then learning the names of the shapes, then matching the shapes with cards placed at a distance – first with a filled-in version of the shapes, then a thick outline, and finally a thin outline.
The purpose of the work is to develop visual and muscular discrimination of two-dimensional shapes, as well as visual training and preparation for learning geometrical figures. Indirectly, the tracing of the figures also prepares the child’s hand for writing
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