Harold has some money. Sally has four times as much money as Harold. Harold earns $18.00 more dollars. Now he has the same amount as Sally. Can you figure out how much money Harold has altogether? What about Sally?
10 students out of 18 represented Harold’s initial amount as N, X or H and Sally’s amount as . 8 students correctly wrote N+18 to represent Harold earning $18 more.
With scaffolding, students can model situations correcting with using equations.