# The Detective Game

From wikisori

## Contents

### Age

6-9.

### Materials

An envelope of 54 triangles of 3 different colors; of 3 different sizes and 6 types:

- 9 acute-angled isosceles triangles.
- 9 right-angled isosceles triangles.
- 9 obtuse-angled isosceles triangles (three of each color).
- 9 acute-angled scalene triangles (three of each size).
- 9 right-angled scalene triangles.
- 9 obtuse-angled scalene triangles.

### Preparation

Directress and child.

### Presentation

- The triangles are scattered on the table.
- The directress says, "I want only one of these. Can you guess which one it is?"
- The child may guess or choose one.
- "No, that is not the color of the one I want".
- The child guesses the color and isolates all of the triangles of the right color.
- The guessing goes on, each time eliminating some triangles as the qualities are narrowed down.
- As each correct quality is identified, the directress writes a label, i.e. after the child has found that the triangle must be green, the three labels are arranged: the green triangle.
- At the end, when only one triangle is left, the adjectives cover all of its characteristics: the large green obtuse-angled isosceles triangle.
- The child reads the labels.
- Directress says: "It was necessary to use many adjectives to find the right triangle from among that large group".
- The labels are taken up and mixed and lain out again.
- "With the same adjectives we would still be able to find the correct triangle, but the arrangement/order of the adjectives usually sounds best in only one way".
- The child rearranges them to find which order sounds best.

### Control Of Error

The Directress.

### Points Of Interest

### Purpose

- To give a very strong impression of each function of speech.

### Variation

### Links

### Handouts/Attachments