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Author Archives: Elizabeth DeCarli
Pass the Candy! Sweetening the Study of Probability
As part of our guest blog series, we bring you another post from Kathryn Shafer. A former middle school and high school math teacher, Kathy is now an Assistant Professor in the Department of Mathematical Sciences at Ball State University, … Continue reading
How Low Can You Go?
I heard a great radio interview on NPR this week with Tim Storms, who holds the Guinness Book of Records for the lowest note sung by a human. He sang a few low notes for the interview—so low that my … Continue reading
The Geometer’s Sketchpad and Sketch Exchange: What’s New?
Hey Sketchpad users—there’s a new version of Sketchpad available! It’s Sketchpad version 5.05, a free upgrade for Sketchpad 5 users. For you early adopters, Sketchpad 5.05 is fully compatible with Mountain Lion and will also be compatible with Windows 8 … Continue reading
Posted in Math Software
Tagged Dynamic Geometry, Sketchpad, Sketchpad Explorer, Software Development
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Exploring the Law of Large Numbers with TinkerPlots
As part of our guest blog series, we bring you a post from Kathryn Shafer. A former middle school and high school math teacher, Kathy is now an Assistant Professor in the Department of Mathematical Sciences at Ball State University, … Continue reading
Lessons from the News
There’s nothing like reading the local paper over breakfast to start your day off with a grimace. Take this headline from Wednesday’s San Francisco Chronicle: “State’s college tuition rising fastest in nation.” Just what California parents need, more stress! The … Continue reading
Posted in RealWorld Math
Tagged Data and Statistics, Dynamic Data, Education in the Media
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A Bittersweet Milestone
I’m about to reach a milestone, and I have mixed feelings about it. I started teaching in 1994, and I taught for nine memorable years. In 2003, I realized that I need time away from the classroom, and I took … Continue reading
Turning Problems into Professional Development
I had the pleasure of meeting Jamila Riser a few years ago at NCSM and seeing her presentation about PCubed: Powerful Pedagogical Practices. PCubed was a program implemented jointly by the Delaware Mathematics Coalition and the University of Delaware (and … Continue reading
Posted in Professional Development
Tagged Ignite, IMP, Pedagogy, Problem Solving, Teacher Collaboration, Videos
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Music and Math in the News
I have a memory from elementary school of a lesson on music and math that was taught by guest instructors. The instructors had us clap out polyrhythms, with half the class clapping in two’s while the other half clapped in … Continue reading
March Mathiness
http://youtu.be/WFvYZDR4OeY
Check out the graph below, which shows the heights of 29 people. What do you notice about the graph? What do you wonder? (Thanks, Annie Fetter!) Now, what if I told you that this group of 29 people were all … Continue reading
Face(book) the Facts––You’re Being Targeted!
I have a fake Facebook birthday. I chose leap day for my fake Facebook birthday, so this is the first year I’ve actually celebrated it. My Facebook friends are a mix of longtime friends, close and distant relatives, acquaintances from … Continue reading