1
Tutorial: write to the action
List the on-screen actions first. Give each action one short spoken instruction, then leave room for the viewer to see it happen. Read technical terms aloud before generating a sample, and revise any sentence that sounds clear on paper but crowded beside the demonstration.
2
Explainer: lead with the question
Open with the question your YouTube viewer came to answer. Group supporting points into brief sections and mark transitions in the script. Audition the introduction with the opening visuals before drafting the rest, so the pace and level of detail are set early.
3
Short: cut to one takeaway
Write a single hook, one supporting detail, and a closing line. Test them against the actual cut, including any text already on screen. If the voice maker read repeats every caption, remove the duplication instead of speeding up the narration to squeeze it in.