Live lecture/webinar hybrid experiment

I’m currently teaching two sections of the same introductory GIS course, one face-to-face (F2F), and one online.  This morning I tried a little experiment – I taught my regular F2F class in a lecture hall as usual, but I had a live webinar version of it online at the same time.  It went remarkably well, so I thought I would briefly explain what I did, why, and how.

What I did:

Students that did not attend the live lecture (in either section of the course) could see whatever I showed using the projector in class, which included PowerPoint slides, web pages, and a live demo of ArcGIS ModelBuilder.  They could hear me talking, but could not see me (no separate video feed of the instructor).  Besides this main window, there were two smaller windows, one for questions, and one for chat (these were not visible to the F2F students). I recorded the entire two-hour lecture, broken into two parts, that was then posted online for students who couldn’t watch live, as well as for those who may want to refer to it again later.  The students who attended the webinar version were from both sections of the course (I did a quick poll before class started).

Why I did it:

There were three main reasons why I wanted to try this.  I have been thinking about trying this hybrid approach for a while, but the current impetus was that I have a guest speaker coming to class next week.  After I invited him, I realized that I couldn’t ask him to do what I have been doing up until now, namely recording a separate podcast version for my online students and then teaching the lecture to my F2F section.  I wanted to have a way to capture him speaking in class in one shot.  Second, I have been a little uneasy about the fact that my online students were not benefiting from the spontaneous questions, discussions, demos, and announcements that would come up in class, and I wanted to capture that.  Third, my in-class attendance has dropped off dramatically in the past couple of lectures (I’m guessing this is due to  the F2F students having access to the online lecture podcasts) and I wanted to have another way for them to participate if they can’t (or won’t) attend in person.

How I did it:

Aside from the usual software (PowerPoint, using presenter view; ArcGIS; Chrome browser) I used Adobe Connect for the webinar.  I have used this for about two years for holding online office hours, so I was quite comfortable with setting it up.  I presented using my own laptop (Dell Latitude E6520) and used my own newly-purchased wireless lavalier microphone.  After consulting with my amazingly helpful colleagues through the U of T Educational Technology Interest Group, as well as a professional sound engineer (a friend of a friend), I decided to go with the Sennheiser ew100 G3 system.  It worked very well, although the sound today was a bit muddy.  I think this is mainly a matter of my learning the correct settings, especially mic sensitivity.  I can also increase the sound quality settings in Adobe Connect next time, which takes a bit more bandwidth, but may be worth trying.  I used my iPad (3rd generation) with the Adobe Connect app so I could see how the webinar looked from the students’ perspective, and it was easier for me to check for online questions without having to keep switching windows on my laptop.  I didn’t go so far as to monitor the audio this way, but will do so next time (at least to check the quality).

How it went:

Really well!  I had about 15 students watching online, and they were able to ask questions and use the chat window to talk with each other (this was minimal and not distracting). I got some very positive feedback and will definitely be doing this again.  I’m really pleased that my online students now have the option of participating in a live lecture.

Student view of the webinar
Student view of the webinar
Instructor view of the webinar
Instructor view of the webinar

My GIS curriculum review: what to leave in, what to leave out

I have now completed a systematic inventory of my teaching material as part of my GIS curriculum review and renewal process.  It has been a challenging and enlightening exercise, as I forced myself to take a hard look at what I have, as well as what’s missing.   The result is I can now make more confident and informed decisions about my curriculum, particularly what topics I should add, what changes are realistic in terms of time available during each course as well as the limits of my own abilities, and what teaching goals I’m trying to achieve.

In my last post, I mentioned three phases to my curriculum renewal, and I have now completed the first two. The first phase was making an organized list of the topics I already teach, and related “Tools and Skills” and supporting “References”.  I have always emphasized the connection between theory and practice by making explicit connections in my lectures between an abstract concept and how it is applied using specific tools in the software.  However, it was interesting to see that there are some topics that could really use more of this.  That is, I spend a fair amount of time on a particular concept or topic in class but then have not adequately followed through so that students get enough experience trying it out for themselves.  I have noticed these gaps before, but now have a much better idea of where the weak spots are.  On a more positive note, it’s also nice to know which sections are well covered in this regard.

For each lecture topic, I went through all of my textbooks and filled in the “References” section with the key chapters and/or sections (something I’ve been meaning to do for ages).  I started with the books and chapters I had been using for years, but the most beneficial part was taking a fresh look at books that I had let gather dust on a shelf for too long.  Consequently, I have rediscovered some great material I can use to broaden my own understanding as well as add more depth and alternative viewpoints to my lectures.  This list of references is really for my own benefit now, but will likely be edited and turned into a reading list for students.  I had originally planned to add in references to scientific papers that I want to use as examples and case studies. However, that was proving to be quite time-consuming and I have decided to leave that for the last phase, when I will actually revise each topic’s content.

The second phase was to systematically go through the UCGIS GIS&T Body of Knowledge, the Geospatial Technology Competency Model (GTCM), ESRI’s list of required skills for technical certification (ArcGIS Desktop Associate and Professional), as well as a large pile of textbooks, in order to identify new material that should be included.  I found this to be both tedious and rewarding.  I started with the Body of Knowledge.  Even though the authors specifically state that they don’t expect any one instructor or even a department’s curriculum to be able to cover all of it, it is still a humbling experience to read through every section and realize how much I’m leaving out.  However, it was also really enlightening, as it made me think about my teaching goals, and why I include or exclude any particular topic.  I became more conscious of the fact that I take a pragmatic approach, recognizing that the majority of my students are not destined to become GIScientists or GIS specialists.  Thus, I can exclude educational objectives such as “formalize the notion of field using mathematical functions and calculus” (from Topic CF4-3 Fields in Space and Time) as well as the entire section on geocomputation, while focusing on ensuring students are able to “explain the concepts of ‘developable surface’ and ‘reference globe’ as ways of projecting the Earth’s surface” (Topic GD5-2 Map projection classes).

Once I had gone through the UCGIS Body of Knowledge, I then went over the GTCM spreadsheet and realized that there were a lot of similarities, so this didn’t take long.  One very useful difference in the competency model is that, since it is indeed about competencies and not an attempt at describing a body of knowledge, there are things listed such as oral and written communication skills, which I wanted to make sure I also included in my own curriculum.

The last step in phase two was to go through the list of skills for ESRI technical certification for both Desktop Associate and Professional.  I came to the same conclusion as with the Body of Knowledge and the GTCM, namely that I will not be able to teach everything, but that I can get a good sense of how many skills I teach now, and what could be added.  It’s interesting to note that some of their skills are quite specific (“design a file geodatabase”) and others are more vague (“determine the appropriate workflow to complete a given geoprocessing task”).  I have not seen the ESRI exams for either certification but, from the list of skills ESRI provides, my sense is that my curriculum covers many of the Associate skills but only some of the Professional skills. I should note that, while my GIS courses use ESRI software and are geared towards providing students with practical and marketable skills, I have no intention of designing my courses around ESRI certification.  I was curious to see how my curriculum compared to ESRI’s requirements though, and I do think it is only pragmatic to recognize that it would be useful for students to acquire as many of them as is practicable within the academic teaching objectives of the curriculum.

So, now it’s on to phase three, where I will revise existing lectures and assignments and add new ones, guided by the results of my curriculum inventory and review.  This is something that will extend over at least the next few months, and will be discussed in future posts.

 

P.S. yes, the title was inspired by Bob Seger’s Against the Wind – I’ve always liked that line.