Ran Zhao's project is on embedding auto-graded self-quizzes in tutorial videos so that students can learn the content in the video more effectively. Another objective is to is to improve the Lesson tool in Collab so that we can streamline the pre-class study (video-watching, self-quizzing, receiving feedback, re-playing any section of the video if necessary, re-taking the quiz, moving on to next video) on a centralized platform and in a more fluid manner.