The Dark Side

1. Watch the Dark Side Video.

Download the accompanying worksheet.

2. Write a prediction for:

What Percentage will the light reduction will be?

** add your prediction to the bulletin board below.

3. Write down any known information on your handout:



4.What percentage of light reduction will there be after 2 pairs of sunglasses?




5. Find out how much the light reduction will be after 5 pairs.



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

7. Sequel: How many pairs will it take for their to be lower than 99% light reduction?


Credits: This is a sequel to Dan Meyer’s Double Sunglasses