Definitely should be more reading than writing, I'll explain the should in a sec.
As for assignments, it was a pretty slack course in my opinion. We had 2 journals to write (1 page reflections on given articles, informal), an opinion piece on something radio-related that was 800 words, and an 8 page double spaced essay. We did also have a group presentation for tutorials, but it was pretty much a case where you regurgitate what the prof talked about in lectures that week onto a PowerPoint, and provide examples/make activities out of it. The exam was 100 MC questions, but they were really easy ones; you had to know facts and stuff, but it was more general ideas than actual dates/times/names. Oh, and there's NO MIDTERM!
There were weekly assigned textbook readings to compliment the lectures, as well as a bunch of additional articles to read too (testable material). However, I went through the whole term without having the book of articles and read one chapter of the textbook; I just lucked out in that when exams rolled around, people starting sending mass e-mails out to create study groups. So I picked a group, and chose the section of the book I already read for my presentation, made study notes for it, and we all exchanged our chapters.
So yeah, there should be a lot of reading, but most of it is also self-explanatory enough that you won't need to read for details, just content. It's a really good elective with a really light workload, and it's pretty interesting too.