November 23, 2015 at 08:19PM

Using Ray diagrams to find the smallest possible mirror to see the entire width and length of your body. #teach180 https://t.co/kTuzoBr8Au http://twitter.com/rutherfordcasey/status/668977211366477824
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November 05, 2015 at 05:54PM

Fun with the Right Hand Rule #teach180 https://t.co/qnMBjg2Eef http://twitter.com/rutherfordcasey/status/662417766662606848

November 04, 2015 at 02:25PM

I’m happy to be showing my support to LBGTQ students today! #teach180 https://t.co/nL5g9dKdBm http://twitter.com/rutherfordcasey/status/662002644387401728

November 03, 2015 at 09:45AM

One of the best mistakes I’ve seen in the mistake game. #teach180 https://t.co/H6mHcdSV8C http://twitter.com/rutherfordcasey/status/661569878952841216