David, I have a great turnover of teachers in my program. My colleague and I have decided to keep a Notebook for each subject.
It is quite simple. One for each subject with a copy of daily work. and a small note with who "got it" and "who didn't" This includes copies of every handout, etc.
We just turned our 9-12 class into two classes and found the teacher having great problems keeping up, so we came upon this idea.
The second idea we had, was to pick our favoirte lesson plans for the rest of the year and put them in a book as an IDEA book for the new teacher.
This person will appreciate all your help.
You could even write a small paragraph about each student she will have so she has some background.
She will need lots of support and I know you will give it.
(You might even want to have the students do a llittle "welcome" decoration on the bulletin board BUT NO TOXIC BEARS!!!