Tag Archives: judith seidel

Thanks, @seidelj! Currently exploring Cardioid activities using either Geometer’s Sketchpad or pencil/paper. #mathchat #STEAM #STEMed #ValentinesDay #NYCISTk6

Screen Shot 2018-02-13 at 9.57.26 AMLast week, I bumped into Judith Seidel (@seidelj) at a lecture at the Museum of Mathematics. She suggested I explore a Cardioid Activity on Geometer’s Sketchpad  — and just in time for Valentine’s Day too! A quick Google search yielded these resources which I forwarded to the Math Department:

1. A Geometer’s Sketchpad lesson plan:
http://mathforum.org/sanders/connectinggeometry/Cardioid.html

2. A video tutorial with doable paper/pencil/ruler instructions:
https://www.youtube.com/watch?v=qhbuKbxJsk8

3. More information about cardioids and the math behind them:
https://www.scribd.com/document/365268535/Cardioid-pdf

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