Page 202 - Mathematics GRADE 9, DE-STREAMED (MTH1W)

F1.2 Financial Decisions
identify financial situations that involve appreciation and depreciation, and use associated graphs to answer related questions
Teacher supports
Examples
• financial situations that involve appreciation or depreciation of assets over time: o the purchase, ownership, or sale of:
▪ collectibles
▪ electronic goods
▪ vehicles
▪ real estate
▪ stocks and other investments
Instructional Tips
Teachers can:
• compile a list of relevant student-generated examples through class discussions about goods or assets that appreciate and depreciate;
• ensure that the examples are authentic and relevant to students’ lives, by drawing from topics generated by students;
• provide opportunities for students to:
o interpret graphs that show appreciation or depreciation, including identifying possible
causes for the trends, making predictions about future trends, and discussing possible
implications;
o make connections to characteristics of linear and non-linear relationships, including
exponential relationships, such as increasing and decreasing trends and rates of change when interpreting graphs (see C3.1).
Teacher Prompts
• What are some examples of assets that appreciate or depreciate?
• What might affect the rate at which an asset appreciates or depreciates?
• What causes some assets to appreciate while others depreciate?
• Given a graph showing appreciation and depreciation rates, identify the following:
o What variables are involved? What is being measured on the vertical axis? On the horizontal axis?
o During what time period(s) is the value increasing or decreasing quickly? 201