0:00-0:10 Welcome, lab goals, and setup check. 0:10-0:25 Instructor demonstration of vertex, edge, and face selection with common beginner mistakes. 0:25-0:45 Guided exercise 1: edit a simple primitive using face selection and extrusion. 0:45-1:05 Guided exercise 2: add insets and bevels while preserving readable form. 1:05-1:15 Short break and file save checkpoint. 1:15-1:40 Guided exercise 3: use loop cuts to support shape control and add detail. 1:40-1:55 Pair or table review: identify clean edits, accidental distortions, and areas needing refinement. 1:55-2:00 Wrap-up, assignment reminder, and next-step preparation for geometry troubleshooting.

0-10 minutes: Welcome, goals, and review of clean geometry expectations. 10-30 minutes: Instructor demonstration of common beginner mesh issues, including uneven proportions, unnecessary cuts, overlapping faces, and uncontrolled bevels. 30-55 minutes: Guided troubleshooting walkthrough using a simple model, with emphasis on selecting the right component mode and using non-destructive inspection habits. 55-70 minutes: Short break and learner questions. 70-95 minutes: Small-group online critique where learners identify one strength and one refinement need in sample models. 95-115 minutes: Instructor-led refinement pass showing proportion checks, edge cleanup, and simplified detail decisions. 115-120 minutes: Wrap-up, assignment connection, and next-step expectations for the self-graded check.