This unit is to help students apply certain mathematical principles to the real world. Those principles will include how to calculate tip/tax on various goods and how to take discounts off of or add mark-ups to certain prices. Group Size: Whole class Learning Objectives:
After completing this lesson, the student should be able to calculate a tip and find the total on a restaurant bill, calculate the tax on a commodity and find the total, determine the price of an item after a sale, and calculate how high of a mark-up a business needs to employ in order to turn a profit on a commodity. Materials:
Worksheets with various word problems
Calculator (if applicable)
The educator should present to the class the various principles of this unit. First, simple terms such as tax, tip, discount, and mark-up should be explained. Then, the educator should give an example of a scenario that would necessitate a tax, tip, discount, or mark-up and walk the students through the steps of how to perform the calculations. After the educator's demonstration, a worksheet with various word problems with various scenarios should be passed out to the class for student completion. It is possible for the students to work in pairs or groups for this activity. However, that is left to the educator's discretion. The educator should be available to answer any questions or concerns that the students may have. Assessment:
The student's performance in this unit will be assessed by their completion of the worksheet that is to be handed out. Also, the student's can be assessed with a quiz on their knowledge without any educator assistance, like that was provided with the worksheet. The students will also have to interact on a class blog in which they are to discuss the standards of tipping, what their parent's usually tip, what type of service do they expect for the tip they'll give and what kind of tip they would give if they were on a date and trying to impress their date. Benchmark or Standards:
MA.7.A.1.2: Solve percent problems, including problems involving discounts, simple interest, taxes, tips, and percents of increase or decrease.