Teaching With the Data of Economic Mobility

My latest piece for the New York Times Learning Network was inspired by some amazing data visualizations from The Upshot.

These animations show trends in economic mobility gathered from a landmark study of 20 million Americans. In my lesson, students use the Upshot’s customizable tools to collect and analyze data from the study to determine which groups of Americans have the best chance of improving their economic standing.

Here’s the introduction:

America is often referred to as the land of opportunity. But are all opportunities created equal? Do all Americans have the same chance of achieving the American dream?

A groundbreaking study of United States census data examined how the economic status of 20 million Americans changed from childhood to adulthood, and while the data has a lot to tell us about economic opportunity in the United States, it is likely to raise more questions than it answers.

In this lesson, students use tools created by The New York Times to explore data from the study on economic mobility. They will analyze and categorize economic outcomes, compare and contrast statistics for different demographic groups, and pose and explore their own questions about what this data has to say about economic opportunity.

Does everyone in America have the same chance at success? Let’s see what the data says.

The full lesson is freely available here.

Why Winning in Rock-Paper-Scissors (and in Life) Isn’t Everything — Quanta Magazine

My latest column for Quanta Magazine explores the concept of a Nash equilibrium in the simple game of Rock-Paper-Scissors.

A Nash equilibrium occurs in a game when each player employs a strategy that can’t be improved upon. That is, in a Nash equilibrium, no player can improve their individual outcome by changing their strategies. John Nash proved that in all games involving a finite number of players and a finite number of options, a Nash equilibrium must exist. This result revolutionized game theory and economics, and earned Nash the Nobel Prize in 1994.

My column explores the nature of Nash equlibria in the context of a game everyone is familiar with: Rock-Paper-Scissors.

So, what does a Nash equilibrium look like in Rock-Paper-Scissors? Let’s model the situation with you (Player A) and your opponent (Player B) playing the game over and over. Each round, the winner earns a point, the loser loses a point, and ties count as zero.

Now, suppose Player B adopts the (silly) strategy of choosing Paper every turn. After a few rounds of winning, losing, and tying, you are likely to notice the pattern and adopt a winning counterstrategy by choosing Scissors every turn. Let’s call this strategy profile (Scissors, Paper). If every round unfolds as Scissors vs. Paper, you’ll slice your way to a perfect record.

The guaranteed existence of Nash equilibria dramatically impacts the way we study economic incentives, treaty negotiations, network analysis, and many other things. However, a recent paper suggests that even though Nash equilibria must exist, it may be unwise to assume players will always find them! You can learn more by reading the full article at Quanta Magazine.

Quantized Academy Columns Now Featured in WIRED

I’m excited to announce that my column for Quanta Magazine, Quantized Academy, is also being featured in WIRED magazine.

You can find my pieces on pentagonal tilings, symmetry and group theory, and gerrymandering there. And there was actually a brief window where my column on the efficiency gap was among the most popular articles on WIRED, which was a cool surprise!

 

You can find all my Quantized Academy articles at Quanta Magazine, and those that appear on WIRED can be found here.

MfA and Story Collider

I am excited to be taking part in a Story Collider event this April!

The Story Collider’s mission is to bring true, personal stories about science to life through their live storytelling shows, and Math for America is partnering with the Story Collider to create an evening of teacher storytelling.

I’ll be joining five other MfA teachers to tell our stories about our classrooms, professional lives, and journeys through teaching. This is yet another example of the incredible professional opportunities that Math for America creates for its teachers to learn, to lead, and to be heard.

You can find out more about the Story Collider here, including links to their podcasts and a schedule of upcoming events.

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NCTM Annual — 2018

I’m excited to be heading to Washington, DC in April for the 2018 NCTM Annual Meeting!

NCTM’s annual meeting brings together thousands of educators from across the country to discuss mathematics, pedagogy, technology, and more. I presented at the 2017 Annual Meeting in San Antonio and had a great time, so I’m looking forward to this year in DC.

I’ll be presenting Statistics and Simulation in Scratch, a 60-minute session about using simple computer programming tools to make the study of probability and statistics more experimental and exploratory. We’ll look at ways teachers and students can use Scratch, the free, web-based programming environment designed by the MIT Media Lab, to model simple probability experiments, collect and analyze data, and create mathematically compelling projects. The technology tools we’ll be using are free and intuitive, and they open up a new pathway to probability and statistics for students and teachers. In addition, it creates opportunities to learn and apply fundamental computer programming skills in a meaningful context.

My talk is scheduled for Thursday, 4/26/18, at 3:00 pm, so if you’re planning on attending the NCTM Annual, please keep my session in mind!

Conferences like this are great opportunities for professional growth, but the logistics are often complicated for classroom teachers.  I’m fortunate to have received support from Math for America, which makes attending NCTM’s Annual Meeting in Washington DC possible. And I’m proud to be one of several MfA teachers presenting at NCTM! You can find a complete list of MfA presenters here.

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