Rubrics and the IBDP
I'm a big fan of Susan Brookhart, and the pages of my copy of How to Create and Use Rubrics for Formative Assessment and Grading are well-worn. I have a few additions/exceptions when I work with people to make rubrics, which I'll write about in future. I love Jan Chappuis' tips for writing rubrics with students in Seven Strategies of Assessment For Learning, and highly recommend it if you are wondering how to make assessment tools matter to your students and support learning.
IBDP rubrics don't exist, so making sense of them as a teacher and then helping students understand what the criteria look like in action is critical. Here's an example of one I created with students for the Literature and Performance IA, Criteria A and B. If you are interested in the process, please get in touch.