Smudged Receipts

Students revisit tape diagrams and surface strategies for using tape diagrams to determine unknown values in situations. Students used tape diagrams in Unit 4 to reason about percent increases and decreases. In this lesson, students use tape diagrams to informally represent situations of the form `px+q=r` and `p(x+q)=r`. Students will be introduced to these types of equations formally in Lessons 3 and 4.

By Desmos Classroom

Learning goals: Learning Goals • Interpret a tape diagram that represents a relationship in context. • Use a tape diagram to determine an unknown value in context.