As I posted on Twitter today (@dmarain)...

If I were to give you $50 we'd have the same amount. If you were to give me $50 I'd have 9 times as much as you. How much do we each have?

Submit your answer and solution via the Blogger Contact Form in right sidebar.

Other comments welcome.

Reflections...

1. This was not intended to be highly challenging. It might engage students early in the year and I designed it to be accessible to most.

2. The language is open to interpretation by design! We want students to feel some disequilibrium. But we don't have to resolve ambiguities. I let my students do that among themselves.

3. Before jumping into an algebraic solution, I would allow my students to experiment with numbers - call it "plug in" or Guess-Test-Revise. After all on standardized tests this is what many will do in spite of all the algebra we teach!

## No comments:

Post a Comment