## Modeling Addition: When Students Ask

**Why should I learn addition?**

Lead children to see that adding groups saves time in calculating the cost of items at a store, keeping score in a game or sport, adding up the number of miles they've traveled on a trip, finding the total number of stickers in a pack, or finding how many cups of an ingredient are needed to increase the size of a recipe.Explain to children that knowing how to add will help them learn how to subtract and how to do more complex math later on.

**Why do I need to learn the plus sign and equals sign?**

Explain to children that mathematical symbols such as the plus sign and equals sign tell what to do in a number sentence. Discuss other signs or symbols, such as stop signs, traffic lights, and danger signs, which children must instantly recognize and understand. Explain that mathematical symbols are part of a language that everyone understands and that the symbols and numbers are the same worldwide so that people can communicate mathematically even if they speak different languages.**How do I know when to add?**

Review words and terms such as*in all,**altogether,*and*sum*that indicate addition. Remind children that whenever they need to combine groups, they need to add. Make sure children recognize the plus sign (+) and know that it is a signal to add.