Dan Meyer’s Double Sunglasses

1. Watch the Double Sunglasses Video again.


Download the accompanying worksheet.

2. Write a prediction for:

What tint will it be after 2 pairs of glasses?

** add your prediction to the bulletin board below.

3. Write down any known information on your handout:



4.How much tint is there after 1 pair?.



5. Find out how much tint there will be after both pairs.



6.Watch the act-3 video to check your answer.

7. Sequel: How many pairs will it take for the tint to be greater than 95%?