http://johnthomson.org/2012/09/11/ashes-ashes-they-all-fall-down/ Thoughts on the social impacts of communication policy and educational technology. Wed, 08 Jan 2014 18:21:46 +0000 hourly 1 https://wordpress.org/?v=4.5.2 http://johnthomson.org/2012/09/11/ashes-ashes-they-all-fall-down/comment-page-1/#comment-6403 Wed, 12 Sep 2012 05:31:19 +0000 http://johnthomson.org/?p=1070#comment-6403 True indeed! And great advice as usual, John. Even good old fashioned overhead projectors have a bulb blowout sometimes. And though chalkboards rarely walk away, sometimes all the chalk is gone when you get to class. Good planning and a good back-up plan are fundamental! Keep up the good work!

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