walk-through

walk-through - noun

a thorough explanation (usually accompanied by a demonstration) of each step in a procedure or process

a pedestrian passageway through the ground floor of a building

a first perfunctory rehearsal of a theatrical production in which actors read their lines from the script and move as directed

the act of walking in order to view something

"I love your course..... you explain so much that I didn't know, forgot, or wasn't taught."

Adult student, USA