The footage to gather

  1. The opening screen
  2. One deliberate tap sequence
  3. The useful result

Give each moment a little breathing room. Get close enough to show the detail, and keep the original clips handy.

Plan a first-session lesson

Opening

Explain what the user needs ready before beginning.

Middle

Group setup into a few checkpoints and pause on any choice that affects the result.

Ending

Point to the first useful action after setup.

Review it for mobile apps

Use readable crops without obscuring the navigation a user must find.

Ask yourself: Can the user tell what is required and what can wait?

Watch it as if you were seeing it for the first time. If something is unclear, try a different cut or add the missing shot.