Can I create an accordion or collapsible in HTML?

When I create pages for learning statistics in Canvas, there is often a lot of content on one page, so the page is long and probably challenging to work with. I'd like to make something like an accor...

Draggable feedback box while grading with a rubric

This idea has been developed and deployed to Canvas I think something changed this last weekend when my school updated Canvas. I can no longer drag around the comment box when I'm giving fee...