I've been running workshops and courses for the past twenty years and hold QTS (current qualified teacher status). I ran an Introduction to Singing Course at Cranleigh Arts Centre (as their singing tutor) from 2001 until 2010, plus a Performance Course from the same venue from 2001 until 2008. I was also the Singing Tutor for the West Sussex Adult and Community Learning Service from 2006-10 running courses and workshops all across the county.
I am happy to run workshops or courses for groups or indeed in schools. Suggestions for workshops are as follows:
Vocal Technique Workshop - this is an introduction to the basics of vocal production (people find this very enlightening!) and it often answers the questions about the main reasons people have problems with their voices. I also explain the main causes of vocal problems through bad technique and how to correct these: I'm happy to incorporate a masterclass into this group, if required.
Help with Roles in musical productions - this is something requiring largely just vocal coaching (which is distinct from singing training) but which can have pretty instant results!
Help with School Productions - what I would ask with this is that I am invited in BEFORE children are really well rehearsed (which also means that any bad habits will be well rehearsed!)
If your needs aren't reflected here, please don't hesitate to get in touch!