After attending a workshop on problem-based learning, you decide to try it out. You realize that a key teacher role in this approach is to
O Prepare a lecture that highlights the key points of a random problem, so students can see the direction you want them to take
O Assist students in identifying an authentic problem
O Gather all the relevant resources in your room, so students can effectively do their research
O Construct a rigorous but fair short-answer test, so the students can demonstrate their learning