Further Materials

  Stereognostic Bag   Material Description: A box or bag with twenty-four small prisms of two types; twelve identical cubes and twelve identical rectangular prisms.  A blindfold.     Presentation: Introduction Bring the bag to the table or chowki and take out one of either prism.  Inspect it closely; it’s faces, vertices and vertices with …

    Material Description: Ten square green frames each containing red squares or triangles formed by dividing a  square vertically, horizontally and diagonally.  Each shape has a central knob to hold the inset by.   On the first shelf are the horizontally and vertically divided insets; The first is a ‘whole’ square The second a …

This is one of the last sensorial materials to be presented since it is not specifically to discriminate dimensions but a way to discover the relationships between cylinders of the four series Material Description: Four boxes each containing a set of cylinders with the dimensions of the four cylinder blocks. Each set is a specific …

Material Description: Three boxes each with three compartments; Three sets of equilateral triangles in red, blue and orange, graded with sides measuring from one to ten centimetres Three sets of squares in red, blue and orange, graded with sides measuring from one to ten centimetres Three sets of circles in red, blue and orange, graded …

Material Description: Different Geometric three dimensional forms including; Sphere, Ovoid, Ellipsoid (Curvilinear solid), Cone, Cylinder (Combination solid) and the Cube, Triangular Prism, Square Prism, Triangular Pyramid, Square Pyramid (Rectilinear solid).   These should be displayed on an open tray on a shelf in types of solid.  The Curvilinear Forms stay still with the use of …

The materials of the Constructive Triangles help the child consolidate into her conscious understanding shape, size  (dimension) and colours and help her to realise that the triangle has the roles of a constructor, divisor and consequence.  The child first needs to be aware of shape and size and familiar with the names presented in the …

Material Description: A wooden cabinet with three drawers containing wooden frames and insets of leaf forms with a knob in the centre to hold them by and an orange stick for each drawer.  Three sets of cards for each figure: one with the complete shape filled, one with a thick outline and one with a …

Binomial Cube Material Description: Wooden cubes and rectangular prisms painted in various colours; the box contains pieces forming a cube (a+b)3and the square of the binomial is painted on it’s lid. A felt mat. Presentation: Bring the box and felt mat to two chowkis, for the first presentation the keep the box on the chowki, …

Bells Material Description: Two series of bells in duplicate from Middle C to High C.  One complete set is mounted on brown stands, the other set on white stands are the tones and the sharps and flats on black stands.  They stand on a keyboard marked with back and white spaces (corresponding to the keys …