Trainer-Led Materials That Help Facilitate Discussion

Hello!

Does anyone have suggestions for how to build materials in a way that will help a trainer encourage questions, discussion, participation with the learners?

I do most of the Instructional Design in Rise for my team and there are 3-4 trainers who use the material I create. We often have 1-10 people in a virtual class. We have self-guided courses, and then follow up with discussions, review, and/or practice sessions where the trainer will share their screen and present the Rise 360 program. I have used discussion questions with suggested answers, but it is easy for a trainer to just read what is written rather than start a true discussion.  

Any suggestions or advice is welcome!