Requiring Students to Take Notes During a Lecture

It is always difficult to get students to pay attention during my lectures describing information resources in the technical disciplines.  In this hi tech era it is quite common to observe students on their smart phones while I am lecturing.  There is a graduate seminar series in the chemical engineering department which features outside speakers discussing their research.  Once a year I speak to this group about information resources in chemical engineering that the library provides.  The professor who coordinates the seminars requires that the students take notes which he collects after the lecture.

This certainly requires that the students pay attention, but I still notice one with her cell phone.  I am interested in seeing the notes that the students took.  I also asked the professor to return the notes to the student so they can refer to them in the future.