The phrase "to guide the discussion" means to lead or direct the conversation or talk in a particular way by providing instructions, asking questions, or suggesting topics. Full definition
The baseline findings in the report are meant to help guide discussions about future investments for prevention and early intervention. (atlanticphilanthropies.org)
Having a protocol that students can use to guide discussions about interpersonal conflict helps students handle disagreements in positive ways. (edutopia.org)
There are many resources that are listed in the article that may be helpful in guiding discussions as schools start the 2017 - 18 year. (sel.cse.edu)