Mar 312016
 

Montessori Lesson

AGE

4 to 4.5 years approx.

MATERIALS

Box 2 is a rectangular box which contains the following 14 triangles:
2 yellow right angle triangles with black lines on the shorter side containing the right angle.
2 green right angle scalene triangles with a black line on the longer side containing the right angle.
2 yellow right angle isosceles triangles with the black line on one of the sides containing the right angle.
2 yellow equilateral triangles with the black line on one side.
2 grey right angle scalene triangles with the black line opposite the right angle,
2 green right angle isosceles triangles with the black line opposite the right angle.
1 red right angle scalene triangle with the black line on the longer side containing the right angle.
1 red obtuse angle scalene triangles with the black line opposite the obtuse angle.

DIRECT AIM

To give the child the opportunity to experiment with various geometric shapes.

INDIRECT AIM

To discover, at a sensorial level, the various ways these shapes can be divided and combined to form other shapes.
For later work in Maths and Geometry.

PRESENTATION 1

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CONTROL OF ERROR

The black lines.
Visual

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