Nov 02, 2026

New Interactive: Try the Compound Growth Time Machine & Share Feedback

This fall, NGPF released six experimental interactives: browser-based tools that students can use with no student account. Over the next five weeks, we’ll highlight one each week and ask for your honest feedback. First up is the Compound Growth Time Machine.

Why We’re Asking for Your Feedback

These interactives are a new kind of resource for NGPF. Instead of linking to third-party calculators or static worksheets, we built tools that students work through directly. We made a deliberate mix of types, including a learning module, calculators, a data activity, and a teacher tool, so we could learn which kinds teachers actually want.

All six are still in beta, but they’re ready to use with your students now and aren’t going away. Your feedback will decide which kinds of interactives NGPF builds next.

About the Compound Growth Time Machine

The Compound Growth Time Machine is NGPF’s first interactive learning module. Students make four predictions about how money grows, see what actually happens, and reflect on the difference. At the end, they build their own scenario and can print their results or save them as a PDF.

What Feedback Helps Most

Sign in to your NGPF Teacher Account, work through the interactive the way a student would, and rate it from 1 to 10 in the box that appears in the bottom-right corner. In the comment box, tell us:

  • Would you use it with your students? Why or why not?
  • What confused you, or might confuse students?
  • What’s missing that would make it fit the way you teach?
  • Would it replace something you use now?
  • Does it give you an idea for a new interactive?

Try the Compound Growth Time Machine and share your rating.

Thank you for sharing your time and classroom expertise with us. We hope you and your students enjoy these interactives.

About the Author

Dave Martin

Dave joins NGPF with 15 years of teaching experience in math and computer science. After joining the New York City Teaching Fellows program and earning a Master's degree in Education from Pace University, his teaching career has taken him to New York, New Jersey and a summer in the north of Ghana. Dave firmly believes that financial literacy is vital to creating well-rounded students that are prepared for a complex and highly competitive world. During what free time two young daughters will allow, Dave enjoys video games, Dungeons & Dragons, cooking, gardening, and taking naps.

author image More by Dave right solid arrow
Mail Icon

Subscribe to the blog

Join the more than 12,000 teachers who get the NGPF daily blog delivered to their inbox:

SIGN UP