Engaging My Students With 3-Act Math Problems

I really want my students to become engaged in the process of Math and I have been looking on blogs, asking other teachers, looking around Twitter, doing anything I can think of to find out what other teachers are doing.  I ran across Dan Meyer’s blog last week sometime and over the weekend decided to develop what Meyer calls ‘Three Act Math Problems’.  Basically these problems use technology to video tape, photograph, and annotate something from everyday life.  Students are shown this video and then ask questions.  Once we decide on a question we are going to answer students break off and work out the math.  At the end we get back together, discuss what we did and imagine how we could take this further.

This whole past week I have been doing Three Act Math problems for the first 10 – 15 minutes and have seen engagement increase consistently.  I think the students really appreciate the idea that:

1.) We are answering their questions.

2.) The things we have looked at are things that are relevant to them.

An Example: Yesterday we looked at a National Post article that stated we are going to melt down 85 million kg of pennies in the next year.  One student knew copper was worth a bit and so wanted to know how much money we’d make off the copper.  The students then determined they needed to know how much one penny weighed (although at the end we realized this was irrelevant), the percentage of copper in one penny and the price of copper.  Once we found these numbers (there was a helpful info graphic with the article) the students were able to work out mathematically how much money we would make off the copper in 85 million kg of pennies.

We have only been doing Three Act Math problems for almost a week however the class is already beginning to ask great questions as well as come up to me with their own ‘Acts’ to base questions around.  Students are becoming less afraid to ask questions and more focused when we cover particular aspects of the curriculum.  My hope is to continue this at the beginning of every class as a way of engaging my students and helping them understand how Math can help answer their questions about the world around them.


4 thoughts on “Engaging My Students With 3-Act Math Problems

    • I know you mentioned the things he was doing a couple times but I don’t think we connected with him in our course. I know I’ve heard a lot about the things he does through @webbkyle and @sarathibeault and yourself . They talked a lot about the things they learned from him when they were in ECMP and after as well.

  1. This all sounds pretty darn cool! Are you encouraging students to come up with the topics or are you responsible for finding videos to inspire their thinking? Way to find ways to make math relevant and meaningful to your students’ lives!

    • So far I have been bringing in videos or articles that I think will be interesting and leave my students asking questions. Then we use their questions to determine where we go next. Students are starting to ask more of their own questions as we go on and some have suggested things we can look at. I think it is something we are building towards.

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