Eric Curts (Ctrl-Alt-Achieve) writes that with Google Screencast, you can:
Record your entire screen or portion of your screen
Record your webcam and your voice
Annotate on the screen while you are recording
Generate an automatic transcript of the recording
Translate the transcript to any language
Edit the screencast by skipping portions of the transcript
And much more! Watch Eric's video walkthrough here. Richard Byrne (FreeTech4Teachers) also has a walkthrough video of this recently announced feature.
Traditional classroom activities (such as lecture) are held at home or before the class, often via pre-recorded video or audio presentations, which prepares the students for more interactive, discovery, questioning, and engagement in active learning activities in the classroom itself.