heard him at regional fall nctm phoenix 2016

he was a ti84 guru that presented (i think he is a TI consultant)

this is the new site
http://tomreardon.com/
https://tomreardon3.wordpress.com/
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these are old urls
http://www.austintown.k12.oh.us/~aust_tr/
http://treardon.people.ysu.edu/

Interesting post about taking pictures in class....

http://www.abbymath.com/Classes/TakingPicturesInClass.pdf

some calculus teaching resources:
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http://mrskrummel.com/teachersapcalc.html
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http://www.calculus.org/