This Instructional Activity is a part of the Lesson 7, Unit 4, Grade 7. Use sentence strips to create a word wall for student reference throughout the lesson to avoid confusion over financial terms. Some words can be written on the same sentence strip to show they are synonyms, such as discount price and sales price and cost price and wholesale price. Students construct an algebraic equation based on a word problem. They express the markup rate of on a video game that costs as to show that a markup means a percent increase.