I had a great professor that would incorporate various ways a question could be posed during the lecture (true/false, multiple choice, etc). He had a very distinctive accent, and I would literally hear his voice while taking the exam and remember the examples he gave in class. He emphasized important points in his power points in red, and then gave those variations on the ways that point could be seen on a test. He really made an impact and I'll never forget him or his teaching style.