If you liked Beth's applied and down-to-earth approach (somewhat) demonstrated in these videos, check out very low cost, online, self-paced courses to develop skills and knowledge helpful for K-12 CS teachers (these are designed SPECIFICALLY for teachers -- modeling approaches using content you can use to teach)!
http://csteachers.ucsd.edu . Use these to help earn your California CS Supplementary Authorization!
If you have a group of teachers you would like to have access for PD support, etc. Contact Beth with this form to learn about 12-month access for $160 per teacher (no units) or $660 per teacher (with UCSD-accredited units).