Prediction: YouTube will become America's classroom.

[Igel]

8. Some Youtube.

Some vids in Google drive.

Schoology.

Flipgrid.

Easy to use screencast-o-matic or screencastify or other similar software/freeware to produce home-grown videos tailored exactly to what you need. Whether initial instruction, adjunct for those absent, or review/RTI.

Some things on Youtube are decent. But I've caught some howlers in "educational" youtube videos. And saw other teachers just letting them play without pointing out how bad some were--they watched the first minute or two, trusted the unknown source, and didn't actually ever bother to watch it. Sometimes just out of date, sometimes just plain wrong. One suggested video (from district, no less) started okay, but 5 minutes in decided calculus was okay for high-school sophomores. (Really? If I teach seniors, can I use grad and curl? Lagrangians? Puh-leeeeze!?)