Mike Zabrocki asked for some kind of run-down of how I’m building the videos for the algebraic structures notes. So here’s a quick run-down! There are currently two finished and five more in the pipe.
Video Workflow
Algebraic Structures
Algebraic Structures Online Materials
One of my big projects for this term is to build a bunch of free electronic materials for Maseno e-learning’s Algebraic Structures course. We gave this class last term; it’s a second-year undergraduate course here, and we really need to use it as an opportunity to introduce the students to mathematical reasoning. They’re getting a bit of that from the online foundations of mathematics course, but here we have a chance to fully develop a course and make sure they’re engaging with the mathematics in a creative way. At the same time, I want the materials to be useful in the outside world; if I’m putting all this work in, I want to avoid the m
I’m building a textbook (using some cool new-wave web technologies: html5+jquery+javascript+xml), which you can access here. Right now it’s a bit of a text dump, but I’m making a bunch of video content, and plan to include Sage Interacts as well! Here’s the first video I’ve finished. (There are about four more already recorded, but my microphone battery died before I could do the audio tracks.) The video style is obviously owing a lot to Vi Hart.
Looking Forward
As the term gets underway, I’m working on a number of projects trying to address some of the issues that I discussed in the Looking Backwards post… I was chatting with Thomas Mawora yesterday, listed off all the ongoing projects I could think of, and came up with five. (Or up to seven, depending on how you count it…) It’s a lot, but luckily there’s a good deal of overlap, so work in one place often helps another project move forward. If you’re going to spread yourself thin, you might as well be maximally efficient about it.
Looking Backwards
The term has come to a close, finishing the first half of my Fulbright year, which provides a bit of time to look back over what I’ve done, what’s worked well, and what’s worked less well. A big part of the plan for the first time was to try out the existing structures, get to know what’s going on in the university, and figure out interesting ways forward that might work in the local context. There were a lot of failures this term, places where things didn’t work as expected, where it’s clear that things need to happen differently next time around. So if this post sounds bleak in some ways, rest assured that I’m already working hard on projects for next term that will try to get around these difficulties in one way or another.
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Teaching Face-to-Face
Despite my mandate to work on electronic education, I felt it was very important to teach a face-to-face course in order to better understand the undergraduate students and their context. To that end, I co-taught Foundations of Mathematics with David Stern.
The course went reasonably well, but has definitely made me consider the degree of work necessary to really address the problems in the education system. We were working with first-year students, which is ideal in many ways. It’s easier to do something revolutionary with first-years, simply because they haven’t lowered their expectations too far yet. (This was true even when I was teaching at the University of California; the first-years are a lot more open to non-traditional techniques, simply because they expect University to be different from secondary.) Continue reading
Teaching, teaching, teaching….
Yesterday I spent five hours in front of a board! Getting some good honest work in… Two hours of normal class,doing the Foundations of Pure Math course, two hours of seminar, and an hour making a video lecture for the algebraic structures class.
Here are the videos for the algebraic structures class; it seems like a nice deliverable! It’s for the first section of the notes, which gives an introduction to the definition of a group, along with a bunch of examples.
Group Definition
Integers modulo n
Permutation Group
Dihedral Group
General Linear Group
The videos were shot in David’s house; the clip-on microphone that I picked up last year all but eliminated the terrible echo in the room. On the other hand, there’s a good bit of noise in the audio, which it would be great to figure out how to eliminate.
Groups, Groups, Groups…
Lots of teaching things going on right now! David and I were tasked (with extremely short notice) with developing an online abstract algebra course (entitled ‘algebraic structures’) for second-year undergraduates, and have been hashing out a good direction for the course to take.
One of the main things we realized (in a few hours of back and forth) is that the usual first course in abstract algebra probably isn’t really locally appropriate. This is largely because we can’t be assured that the later maths classes — which hook abstract algebra into a wide variety of different contexts — will ever be available to the students. The other big idea we came up with is that it would be great if we got students to the point where they could look at a mathematical problem and find the influence of algebra, and (in a perfect world) craft solutions to the problem appropriately.
Inventing Situations. 