Seminars are where I present some small set of ethics ideas to a larger group. Typically this means and audience of 10 – 50 people with only limited opportunity for audience participation.
These are useful for dispensing knowledge (say a program timeline) or a concept (say when to be virtuous) consistently and with minimal delay across a large number of people.
Usually, seminars last 1 – 2 hours.
I don’t give lectures!
Lectures, typically, are to very large groups (300+) with no opportunity for any meaningful discussions. Most lectures allow for a question time but the number of questions is so limited as to be unhelpful. A better approach is to make the information available, make it known that reading the material is important, and running seminars or workshops.