|Photo Courtesy of Krissy Venosdale|
Over four years ago when I was in the classroom as a middle school math teacher one of my favorite activities was Dan Meyer's Nana's Chocolate Milk - 3 - Act Math activity (love these problems and there is a plethora of them). I love this activity because it it gives students an opportunity to solve ratio problems using proportional reasoning and problem solving without following a rule. They can find "their" way to solve the problem using what they know. It provides opportunities for math talks that create a community of mathematicians and "lead learners" rather than blind rule followers (obviously I have issues with step by step). And on some days students have to embrace their "Ishness" - Here is a past post on that - CLICK HERE
Now back to Nana's Chocolate Milk and what it has to do with Hummingbird Feeders...
Ironically, I had a recipe mess up moment when I was making the potion we put into our hummingbird feeders. I mistakenly used the 1/3 cup instead of the 1/4 cup. So, of course I turned it into a proportional reasoning problem for my 7th and 8th grade students as a warm up problem for the day after we did the Nana's Chocolate Milk problem. It was a bit more challenging, but the students
worked in groups and made meaning of the problem in ways that made sense to them instead of blindly following a rule I gave them.
I'm looking forward to later in the year when the students will start creating their own 3-Act math activities to share with their classmates and the world!
Here is the link to the slide deck I used to introduce the problem to my students: CLICK HERE. Please Steal, Copy, etc... and use it with your students and/or create your own.