I recently ran a two day workshop for a school on BTEC Music Unit 3. This is the Power Point presentation with notes that I made to introduce the students to the basics of - setting up a band/different types of mics/mixing desks/PA systems and monitors. There are 9 very highly detailed and animated slides. I have also included my notes and a blank ‘track sheet’ that each student used to note the levels of the bands they were working with. If you give demonstrations of the various mics, instruments and amps you’re going to be using the presentation will take about 30mins.