Omnivorous Surfer

JayCut is an online video editor that is easy to use and fairly full-featured. The software allows you to remix and trim videos and images; add music, transitions, and effects; and add captions and subtitles.

With a FREE account, for non-commercial use only, you have 20 movie exports per month, 2 GB of storage, and 10 GB of streaming per month.  Your video can be viewed from the site, or you can export to YouTube and Facebook with a single click and can export videos for iPhone, Windows, and Mac.

If you want more help than is on the site, just Google "JayCut tutorial."

If you don't have access to Windows MovieMaker or Mac iMovie, Jaycut is a comparable editor. This would be an option for joint or individual student projects so the students could work from both home and school.