Comment on Andrea Rimer's post: I think there are times when low-stake quizzes (with multiple attempts) are appropriate, but I think it is also important to have higher-stake quizzes (one attempt) especially if the types of questions would be similar to what a student sees on a board exam. They will only have one attempt. I do think immediate feedback is important, so students can understand where they went wrong. This could be provided in the low-stakes quiz, so they can learn form it and improve their score before attempting the higher-stakes activity. I often create low-stake assignments with multiple attempts and refer students back to a page number or section where they learned the content, I will also give an explanation.