Monthly Archives: May 2013

Creating effective presentations

I’m working on a presentation on creating presentations.   What other advice would you offer? Note: Open the speaker notes to view the image credits.


  Whenever John (not his real name) entered my class, we had to open the windows. He smelled really bad, most of the time. He also wasn’t in class very often, and I never knew when he would be school, and when he wouldn’t be in school. There seemed to be no rhyme or reason […]

Host your own services

When you rely on a service, particularly a "free" (ad-supported services aren’t really free) service, you always run the risk that whomever is maintaining and controlling the service will shut it down, or strip it of functionality so as to make it less useful (or even useless) for you. This happened to Google Reader, it […]

Presentation: Social Media for Parents – Updated

I’ve updated my presentation on social media, aimed at a parent audience (although I’m sure it could be used with educators just as easily). Embedded below. Note: The first few slides, up to slide 39, are intended to be shared fairly rapidly, to create a sense of overload in the viewer.     (Viewing this […]

Where will all the educational technologists go?

In the not too distant future, there will no educational technologists. That is, there will eventually be no people who specialize primarily in teaching other people how to use technology. The reason why we have educational technologists now is that the rate of change of technology is so high that many people struggle to keep […]

Standard algorithms

I’m working on a couple of short videos comparing the standard algorithm for a multiplication and addition, and considering some ways of using other algorithms which are more likely to make sense for students. To be clear, these presentations do not enough justice to student-created algorithms, which I would strongly recommend as a starting place […]

Let’s talk about how simple multiplication is

Dave Cormier, in an excellent, excellent presentation, made the point that learning multiplication tables belongs to the "simple" domain of knowledge (which in his defense was probably an example he chose to help his audience understand the Cynefin framework). I think I need to understand his definition of simple better, because I do not see […]