WEBSITES

Zipgrade-turns your phone or tablet into an optical grading machine similar to a Scantron.
Free download with 100-scan demo
Full Version $1.99 for 2 months or $6.99 for 1 year

Plickers-is a powerfully simple tool that lets teachers collect real-time formative assessment date without the need for student devices. 

Posters

Teaching 21st Century