If I was to take (Systematic) Theology as a whole and cram it into very brief lessons over the summer period for our Youth group, what would it look like? It would look like "Theology in a Nutshell".
I invite you to read this selection of articles online, feel free to comment on them – even to modify them (if you're a registered contributor.)
If you would like a permanent copy I've included a PDF of the entire series as it stood in September of 2006.