Do you think it is possible to teach calculus without ANY lecture? (or any other passive teaching method like watching videos, reading the book etc.) Well, I have been teaching calculus (I, II and III) for the last 7 semesters doing just that. And I love it.
In the first class I ask students to write their name on a notecard and to place it in front of them. At the end of class I collect the name tags and in the beginning of the next class, I will set them up again, likely in different places. I call this strategy one of the “control knobs” of an IBL instructor, because where and with whom the students work has a big influence on the effectiveness of their learning.
Think of the 5 coolest things you know in mathematics. Did you ever think about including them in your MLA course? You can, and perhaps should.
“Cool things” are short “mini presentations or activities” about a mathematical topic that is exciting to us and usually different from the math content that we are currently working on in class.