The zip file includes an interactive three-tab excel spreadsheet that investigates compound interest. The spreadsheet completes the calculations so the students can focus on understanding how compound interest works and how it relates to real-life scenarios. The first tab explores the difference between simple and compound interest, the second investigates the impact of compound interest when using credit cards, and the third demonstrates the incredible power of compound interest over time by looking at two retirement scenarios.
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Included in the zip file is a word document that guides students through the spreadsheet with questions. The final page includes reflection prompts for students to complete. I use these to address any remaining misconceptions the next day.