This is another awesome project that I borrowed from NCTM's illuminations. Great site for projects and activities!
I use this activity when I teach line of best fit. My students always enjoy it!
In the past I have used Barbie Bungee as a project but I decided to use it this year as a closing when teaching lines of best fit. I believe I counted it as a quiz since the packet was comprehensive.
On Monday, my class had a quiz that I knew we would have about 15 minutes afterward that would be perfect to collect the data needed. Each group of 4 brought a Barbie/action figure and measured the distance of the bungee jump with 2 rubber bands, then 4 rubber bands, and then 6, 8, 10, and 12 rubber bands. I had taped measuring tape around my classroom for students to measure on. Now, I knew groups would forgot to bring a barbie doll/action figure since it was a Monday (not real sure why I gave a quiz on a Monday but I did) and I knew we would not be using the data till the Friday of that week so groups had a few extra days to get the data in. I still made them create a barbie doll and do the trials that day and the groups who forgot brought in a Barbie Doll/action figure the next few days.
We only had 1 casualty--you will be able to see Barbie's head falling off due the impact of hitting the pavement.
These videos were taken during the launch of the Barbies.