Greetings
from Oklahoma!
My name is Keri Kornelson, and I'm in the math department at
the University of Oklahoma in Norman. And I can't escape the fact that
I'm a technological newbie, at least when it comes to technology in the
classroom. But I decided to teach an inverted (flipped) class this
semester, so I needed some technology to make it all work.
The idea started simply enough. Discrete mathematics
is often the course where students get their first exposure to logic and
proofs. I decided to teach in the flipped model because I wanted to be
present when students started trying to read and write the proofs, rather than
letting them struggle through that on their own after I did the content
delivery (a.k.a. lecture) during class time. For example, they don't
really need me to be right in the room with them when they learn the definition
of an even integer, but they are likely to have questions when the time comes
to prove that the sum of two even integers is always even.
So, let me tell you what I'm doing. I record
screencast lectures and post them online for the students to watch before class
time. (Want more details? I'm using a 22" Wacom digital screen
and an open source whiteboard program called Open Sankore that also has recording
ability. After recording, I edit the videos with iMovie.) I tend to
make up some slides with definitions and outlines already in place, then fill
in details and computations as I talk through the material. I make 1-2
videos for each day of class and try to keep them under 12 minutes long.
During class time, I focus on active learning and
peer-to-peer engagement. Students complete activities using the new
material and often present their findings to the other students. Since
they are actually getting their hands dirty, a lot of questions come up.
They work together and often figure things out within their groups, but
I'm also there to help.
There are definitely some challenges. It takes a lot
longer to make a screencast video than to write a lecture. It requires
distilling the topic down to the essentials, creating just the right examples,
making slides to fill in, and practicing both the script and the writing to be
sure the final result will be clear. Then, planning the class activities
is also pretty hard. Do you want to do group work, or individual?
Should they write on paper, or on the whiteboard today? Is this
topic better served by having presentations, or do they just need time to
puzzle it out? I'd definitely advise making core topic videos before the
term starts and devising some class activities ahead of time that you choose
from as needed.
But now, at very nearly the end of the semester, I'm
delighted with the results of the flipped experiment. Students do watch
the lectures ( I spent a long time worrying that they wouldn't) and they
re-watch them before exams and while they are doing homework. I even see
the lectures called up on laptops and phones during class so they can review a
definition or example. While we are in class, I hear the greatest
conversations. They are talking to each other, drawing diagrams, testing
out ideas, asking questions, answering questions, and just engaging in
mathematical discourse. They are learning how to learn math! My
work here is done.
Thanks, all, for letting me visit your discussion.
By Dr. Keri Kornelson, University of Oklahoma