Music help!!!!

When I took my new position I was told there was a chance that I might have to teach 1 block of gr.6 music.  I was really hoping that this music block would turn into art or something else, as I have NO IDEA where to start when teaching music!!!!  I chatted with my principal today and she reminded me about the music.. I'm guessing I'm stuck teaching it!!  That's ok as I'm always up for a new challenge!!!

So... I need some help!

1. has anyone taught music before?  where do I start?
2. does anyone know of any great music teacher blogs?
3. does anyone know of any great music teacher resources?

Thanks in advance!!!!