Cal Armstrong

Twitter: @sig225

Email?

Put an underscore between my first & last name… and then Outlook.com!

I’m a math teacher, an IT aficionado, the original developer (with Jason Llorin) of the OneNote Class Notebook … and an Auxiliary police constable. I write about what I do in the classroom, with technology, and other things. Everything is my own opinion and should not be taken as policy by any organization I associate with.

I also don’t do things for money, so everything I say is free and unsolicited. And shareable; please use what you need!