After reading about water bottle flipping and a Desmos activity being created on it:
I took a look at a few teachers experiences with it including the blogs of Elizabeth Raskin, Jon Orr, and Trish Poulin.Doing this next week with 1 laptop per group to input data and minimize risk. Any setup tips? Planning on rulers and percent talks. https://t.co/AsVtwyoRKi— Martin Joyce (@martinsean) November 3, 2016
I decided to merge some of the ideas, with the first day using Mr. Orr's hook by trying to throw to flip a full water bottle and experience failure in front of the whole class. They screamed, "too much water, you need it to the third line!"
I showed them activity builder Mr Orr made with the 4 choices, and most selected I believe it was yellow. I asked them how we could figure out the best amount of water to have? Some suggested measuring with a ruler, and others said measure the water in it. So, having graduated cylinders that filled up to 100 milliliters, we used those. They made a table of 100% down to 0% with 10% increments. I asked them how we could see how much water for 90% full.
The water bottle is labeled with 16.9 ounces and 500 milliliters. I asked students what they would rather use. They said milliliters because it's a round number.
They said take 10% of 200 milliliters, and subtract it from 500. That left them with 450 mL. Then they'd pour another 50 mL out for their next trial. They would do 10 trials of each and record their successful flips in the data table of the activity builder.
As they complete the table, the points appear on their graph. So, seeing their small sample, the activity asks what it would look like for the whole classes data? Here's their predictions: