In previous units, students solved Take From problems with the Result or Change unknown. In this lesson, students solve a new problem type, Take From, Start Unknown. This type of problem is often challenging for students as the language signifies subtraction, but you must add to solve the problem. Students consider how a drawing represents different Take From story problems. Students are not required to master this type of problem until grade 2.

In grade 2, students are introduced to tape diagrams as a tool for making sense of story problems. How does the work of this lesson lay the foundation for understanding tape diagrams? How will the tape diagrams used in grade 2 be different from the diagrams students analyzed today?