You can add questions to your assignments from textbooks, your question resources, questions you have created, and public collections.
You add questions to assignments using the Question Browser. You can access the Question Browser by clicking the Question Browser button in the Assignment Editor. Once the Question Browser opens, you can browse questions, add questions to your assignment, view statistical information about questions, manage questions and question pools on assignments, and update assignments with new questions.
If you must change a scheduled assignment, notify your students of the change and rescore the assignment. See Rescore Assignments.