Detective Adjective Game

Materials

- Sixty-three triangles composed of the seven different types.
Each type in three different sizes (small, medium, large) and in three different colors (red, blue, yellow). (Angles-right, acute, obtuse; Sides-equilateral, isosceles, scalene).

Presentation

1. Show the child the material and tell him we will be playing the detective game.
2. With help from the child, spread out all of the triangles.
3. On a slip of paper, write “the triangle”.
4. Place “the triangle” at the bottom of the table and have him read it.
5. Have the child choose a triangle and have him place it above the slips of paper. Affirm that it is a nice triangle but isn’t the one you were thinking of.
6. Tell the child that you need to give him more information.
7. Choose a size he did not pick and on another slip of paper write a size. Place this in front of “the triangle” and have the child see that “small the triangle” doesn’t make sense. Have the child decide where it should go. He then cuts the “the” from the “triangle” and has it read, “the small triangle”.
8. Have the child read it: “the small triangle”
9. Ask the child if the triangle chosen is small.
10. Have him place a small triangle above the slips of paper and confirm that it is a small triangle.
11. Remove all of the triangles that are not small and put them in the box.
12. Then tell the child that this is still not the triangle you were thinking of and that you need to give him more information.
13. Write on another slip of paper “red” and place it in the correct order with the other slips.
14. Have the child read it “the small red triangle”.
15. Remove all of the triangles that are not small from the table and replace them in the box. Have the child place a small red triangle above the slips of paper.
16. Then tell the child that this is still not the triangle you were thinking of and that you need to give him more information.
17. Write “ acute-angle” and place it with the others slips.
18. Have the child read: “the small red acute-angle triangle”.
19. Have the child place an acute-angled triangle above the slips of paper and remove all those which are not acute- angled.
20. Tell the child that you need to give him even more information.
21. Write on a slip of paper “ scalene” and place it with the other slips of paper.
22. Have the child read it: “the small red acute-angle scalene triangle”.
23. Have the child place the correct triangle above the slips of paper and remove the triangle that does not belong.
24. Bring the child’s attention to how there is only one triangle left and how this might be the correct triangle.
25. Have the child read the phrase once again to check.
26. “What a good detective you have been!”
27. Then have the child choose the correct symbols to place above each word.
    

Purpose

Direct

To show the child the detective power of the adjective, with the help of the adjective it is possible to single out one from a large group.

Control of Error

The directress

Age

5 years onwards

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