send out seminar questions in advance, ask 'big picture' questions before getting down to the details, often split them up into small groups before reconvening for discussion
I should be finishing an index for my book, but can't resist. You've said what you do here, so start from that.
What drives you to do it this way? What assumptions do you start with - you may not even have articulated them to yourself, but you need to now. What are the outcomes you aim for in each session? For example, I go into a lecture with a question, or 3 main principles I want them to understand. I go into a seminar wanting different things.
And so on. Be analytical and extrapolate from what you do. What are the assumptions about your teaching & the students' learning (they're different & not always connected, something students struggle with) that you start with?
THat should give you 1000 words that are not flannel And remember SMART (oh I can never remember the acronym)
Specific, Measurable, Assessable (or is it Achievable?) R & T I can't remember.
But make your statement concrete: give examples. Don't flannel. Those of us on selection committees can see that it's flannel we're not stupid!