Teach, do not tease
The instinct in education marketing is to withhold — to hint at what the course contains and route people to a landing page. Short-form punishes this. A clip that teases is recognisable within a second and gets scrolled.
A clip that actually teaches something complete is the strongest possible proof that the full course is worth paying for.
Long-form is a quarry
An hour-long lecture contains many self-contained explanations. Each can stand alone. Most educators never extract them, because extracting them is a full-time job — which is what clippers do.
The long lifespan
Educational clips age well. A clear explanation of a durable concept keeps being surfaced by recommendation and search for years, quietly recruiting.
That is the compounding property paid advertising does not have, and it is most pronounced in education, where the underlying material rarely goes out of date.
Credibility is the constraint
Nothing damages an educator faster than a confident clip that is wrong. Accuracy is not a compliance detail here; it is the entire asset. Give clippers material that is correct, and a brief that tells them not to sharpen a claim beyond what the source supports.