Video showing how to hold the recorder and how to blow the correct amount of air into the instrument.
Use this website to work out any tricky fingerings. Just hover over the note and it will show you the proper fingering.
A clever video to help students remember the absolute note names of the treble clef.
Link to Flipgrid, where you can type in your class code (given out in class) and recorder yourself playing a song for a level.