Illuminations - Resources for Teaching Math: Amazing Profit
Example Web Site and/or Technical Equipment Required
Website Example: http://illuminations.nctm.org/LessonDetail.aspx?id=L799
Tech Product Equipment
Computer(s), Internet access, projector, optional document camera
Students use equations to determine eBay profit on new technology. EBay is an online auction agency. For a limited time after a "new" product’s street release date, it is possible to track the profit that sellers make for auctioning them on eBay. Students use previous data of selling prices to derive a linear equation for the "closing bid price" on a product.
This lesson is designed for students who already know how to determine linear equations from a coordinate graph. Its purpose is to illustrate an application of understanding relationships and trends.
- Read through the online activity/lesson plan .
- Gather necessary materials such as markers and rulers
- Print the Amazing Profit Activity sheet (pdf) for students
Be sure to check online for detailed Lesson Plans.
- Use the links at the bottom of the lesson for further resources.
- Questions for Students
- Assessment Options
- Teacher Reflection
Select subjects and subcategories
- Consumer Math