Screencast-O-Matic
Module 9: App 1
http://www.screencast-o-matic.com
This app allows users to record what is occurring on their screens with the option to add a voice-over. Screen casting a lesson allows students to watch it privately as many time as they need to understand the concepts being taught.
This could be especially useful in a math context as many students struggle with the quick-paced Alberta curriculum, and could review their lessons on their own time to review concepts or prepare for exams.