Display the Headline Story pictured in the sidebar to the class. To help children get started, ask, “How many coins might each child have brought?” Have children check to see if each number they suggest fits the story. They must check for three things: all three numbers must be different, one must be double the other, and the total must be less than 20.
Three children each brought a different number of coins to class. One child brought double the number of coins that another child brought. The total number of coins was less than 20. What might these numbers be?