Students solved these problem types and wrote matching expressions in kindergarten. In these problem types, the quantities can physically be joined or separated. This action leads to the resulting quantity. In this lesson students revisit these familiar problem types, and connect them to addition and subtraction expressions. When students connect expressions back to the story problem and explain the connection, they model with mathematics (MP4).
- Action and Expression
- Represent and solve Add To and Take From, Result Unknown problems in a way that makes sense to them.
- Write an expression to represent the action in a story problem.
- Demos sentido a problemas-historia y resolvámoslos.