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PRESENTATION OF THE MATERIAL:

- a box that opens on two hinged doors

- 28 rectangular blocks which, stacked in three layers, form a cube whose formula is:

1) on the first layer:

- 1 red cube with 4 cm edges

- 2 red and black blocks 4 cm wide, 3 cm high

- 2 red and black blocks 4 cm wide, 2 cm high

- 2 black blocks 4 cm high

- 1 yellow and black block 2 cm wide, 4 cm high

- 1 blue and black block 3 cm wide, 4 cm high

2) on the second layer:

- 1 blue cube with 3 cm edges

- 1 red and black block 4 cm wide, 3 cm high

- 2 black blocks 4 cm high

- 2 black and blue blocks 3 cm wide, 4 cm high

- 2 blocks 3 cm wide, 2 cm high

- 1 yellow and black block 2 cm wide, 3 cm high

3) on the third layer:

- 1 yellow cube with 2 cm edges

- 1 red and black block 4 cm wide, 2 cm high

- 2 black blocks 2 cm wide, 4 cm high

- 2 yellow and black blocks 2 cm wide, 4 cm high

- 2 yellow and black blocks 2 cm wide, 3 cm high

PRESENTATION:

- go and get the box from the shelf with the child

- sit down at a table and tell them the name of the activity

- remove the lid, open the two hinged doors and take out the solids layer by layer, rebuilding the cube layer by layer

- when the child is comfortable and rebuilds the cube without difficulty, take out the solids and place them on the table in a mixed order. Ask the child to rebuild it layer by layer and then by angle. Lastly, ask the child to rebuild the cube on the table.