A must-have tool for every teacher and sub is a Daily Summary form. Yes, you can jot notes on a piece of paper or even the lesson plans themselves. But the best way to get all the pertinent information in one place is a Daily Summary Form. Here is one that I use:
The sections of the form are fairly straightforward and open-ended. I did this on purpose. I hate forms that have very specific sections that don't fit what I have to say. And then there is not a place for the things I do need to say. Just remember, like I said earlier, be honest about any problems you had. And I always leave my contact information if the teacher has any questions.
So subs, feel free to download and use the form freely. And teachers, you are also welcome to download the form and leave it as part of your sub packet.