I've actually done something similar to this in the workplace before and found it to be very effective. Basically I scheduled a meeting for the last hour or so of the workday Friday and invited the other developers to come jump on with me. I shared my screen, we had an open mic, but basically I talked through what I was doing and they had a chance to see how my thought process works and also to make suggestions or ask questions. It turned out to be a good chance for the more junior folks to learn from me and some of the other experienced developers and at the same time it made us think about what we were doing at a deeper level, which is something you can get complacent in after you've been doing it a while.
This is something I did for several weeks in a row, but the last time was at least two years ago -- and yet as recently as last month I've had some of the folks that participated bring it up and comment how much they learned from it. If you think about it, it's basically pair programming on steroids.