"Teaching without learning is just talking."

This statement, found on p.3 of Classroom Assessment Techniques by Angelo and Cross, adequately describes my fear when I end up speaking for an extended amount of time in class.  My fear was realized last week when my mini-lecture breached the 15 minute mark, taking up close to a third of the class period.

It is worth pointing out that I am not a lecturer by nature.  Speaking in front of people used to be a dealbreaker for me, and while it is no longer at the top of the list of things that make me uncomfortable, I simply lose interest in hearing myself speak.  I am interested in hearing what other people have to add, what questions are lingering in the room, and whether or not people have a sense of how to move forward with the information.   The mini-lecture, which is an abbreviated, focused lecture (I tend to aim for 7-10 minutes), is definitely my preferred approach when there is information to share.

My rambling "mini"-lecture left me feeling guilty - sheepish might be a better descriptor - after class that day, primarily because we ran out of time to finish one of our activities.  I spent two days (over)analyzing the situation and decided a discussion with the students was warranted.  (Did that extended lecture work for them?  Why or why not?)  The students were greeted with the graphic found on p.139 of Barkley's Student Engagement Techniques (below) on the large projector screens as they walked into class, and the first few minutes of class were spent discussing whether or not they agreed with the summary presented in the pie chart.  

Average Retention Rates from Different Teaching Methods;
Pie chart from Barkley, 2010, p.139; data from Sousa, 2006, p.95

The discussion started with small groups, and then the students were invited to share what they heard from others at their table.  Comments about several "slices" of the pie were offered; the conversation started with the 4% average retention rate associated with reading and then it moved on to details coordinating with the audiovisual category.  When I prompted for some thoughts on the 2% average retention rate reported for lecture, a student courageously raised his hand, and I nervously awaited the response.  

"We decided that it depends on what happens after the lecture."

The relief washed over me when I heard this statement.  He continued:

"The lecture on Monday worked for us because we did something after it.  You know, something that used the information, so we could try it right away.  That helped us figure out whether we understood it or not."

It is one thing to read through the literature and to understand, as an instructor, the importance of this approach to teaching and learning, but it is even more powerful to hear this outlook directly from the students.

In hindsight, I often feel guilty for having lectures, even mini-lectures, prepared for anything since we meet in an Active Learning Classroom which, by its very design, presents challenges to the traditional lecture.  However, if those mini-lectures paired with activities are working for the students, then there is no need to avoid them.

References

Angelo, T. A., and Cross, K. P. (1993). Classroom assessment techniques: A handbook for college teachers (2nd ed.). San Francisco, CA: Jossey-Bass.

Barkley, E. F. (2010). Student engagement techniques: A handbook for college faculty. San Francisco, CA: Jossey-Bass.

Sousa, D. A. (2006). How the brain learns. Thousand Oaks, CA: Corwin.