Avoid questions that seem like there is one right answer. In some cases, it works well to ask not for their own opinions, per se, but a sharing of what opinions they have heard about that topic; such an approach allows you to get the “lay of the land” without anyone feeling too exposed from the start.
allowing room for ideas without ownershp
sk students to complete an assignment in advance that helps them understand and articulate their own views, as well as others they have heard. Such pre-discussion homework can help them reflect on those views, understand potential reasons behind them, and connect them to disciplinary content in the course. Such activities let them do some more logical thinking in advance, before any emotional barriers get thrown up during a heated discussion.
This seems to be what QM does on a regular basis
In situations where you know you will be addressing a controversial topic, you can prepare for the discussion in ways that set the stage for success.
success tips of controversial discussions - think about using these in the general discussion guidelines for students to read as well so they understand better how to relate to others.