 One of the big things that is really great with hypothesis and a lot of just social annotation in general is that you can actually assign students paper research papers to read or to go find resources and then comma the resources they find on the web. And because of the way groups work students can really kind of follow each other on the web or annotate a research paper together or really like dig through a lot of dense material that typically they would do outside of class and then come to class prepared for. And in that way social annotation provides kind of a new way to do instruction as far as having people collectively closely read together, especially in STEM.