Posts Tagged ‘ education ’

useR 2012: impressions, tutorials

June 19, 2012
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useR 2012: impressions, tutorials

First of all, useR 2012 (the 8th International R User Conference) was, hands down, the best-organized conference I’ve had the luck to attend. The session chairs kept everything moving on time, tactfully but sternly; the catering was delicious and varied; … Continue reading →

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Radical Education Reform? Think Bigger.

April 2, 2012
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“My job is to teach you how to think.” –Hugh Young A few days ago John Naughton published an article summarizing his manifesto on how to reform computer science education. I agree computer science education is in need of drastic...

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Stats 101 resources

March 9, 2012
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Stats 101 resources

A few friends have asked for self-study resources on learning (or brushing up on) basic statistics. I plan to keep updating this post as I find more good suggestions. Of course the ideal case is to have a good teacher … Continue reading →

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How Not To Draw a Probability Distribution

March 7, 2012
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How Not To Draw a Probability Distribution

If I google for “probability distribution” I find the following extremely bad picture: It’s bad because it conflates ideas and oversimplifies how variable probability distributions can generally be. Most distributions are not unimodal. Most dist...

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Statistics project ideas for students

February 29, 2012
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Here are a few ideas that might make for interesting student projects at all levels (from high-school to graduate school). I’d welcome ideas/suggestions/additions to the list as well. All of these ideas depend on free or scraped data, which means tha...

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Separation of degrees

January 20, 2012
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Separation of degrees

Scientific American has a short article on trends in undergraduate degrees over the past 20 years, illustrated with a great infographic by Nathan Yau. As a big fan of STEM (science, tech, engineering and math) education, I was pleased to … Continue reading →

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Spinner Doctor

November 17, 2011
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Spinner Doctor

The setup Dan Meyer, a (former?) math teacher with some extraordinary ideas, has a nifty concept for teaching expected values: “So one month before our formal discussion of expected value, I’d print out this image, tack a spinner to it, … Continue reading →

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Seriously … why don’t math classes use computers?…

August 31, 2011
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Seriously … why don’t math classes use computers? Excel, simple Python scripts, Mathematica / Sage, everything beyond the TI-83. Kids could be creating totally sweet visuals instead of cribbing formulae. And thinking instead of copying. I can sa...

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Seriously … why don’t math classes use computers?…

August 31, 2011
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Seriously … why don’t math classes use computers? Excel, simple Python scripts, Mathematica / Sage, everything beyond the TI-83. Kids could be creating totally sweet visuals instead of cribbing formulae. And thinking instead of copying. I can sa...

Read more »

Visualizing Missing Data

March 22, 2011
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Visualizing Missing Data

There are several graphics available for visualizing missing data. The following graphic was inspired by many sources. However, I wanted a version using ggplot2. What is visualized here is the percent missing for each variable in the PISA data across countries. The code will be available as part of the multilevelPSA package I am currently

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