A mix between in-person and virtual participants for an event or a lecture is called a hybrid audience. Working with a hybrid audience may be challenging, as it requires the presenter to find ways to engage both the live and the virtual audience.
Hybrid learning means that one group of students are in class at school. Another group of students takes part in class from home at the same time. They both get taught at the same time.
A declamation speech describes the re-giving of an important speech that has been given in the past. It is usually given with a lot of emotion and passion.
A speech that is given without any preparation, notes, or cards, is called an impromptu speech. It is often delivered at private events (e.g., weddings or birthdays) or for training presentation skills.