Spread out all the 54 triangles. Tell the children that you want only one triangle out of all the triangles. Ask a child to give you a triangle and see if he guessed which one you want. (Write “the triangle” on a slip and ask a child to bring it.) But of course this triangle which the child brings is not the one. Tell the children that you will give them a hint. Write the word “small” on a slip of paper, cut the paper which has “the triangle” and insert the word “small”, so the phrase reads “the small triangle.”