Type the thing your class keeps getting stuck on. Get back a narrated whiteboard explainer they can rewatch on their own time, without you re-teaching it five times.
Every subject has two or three of them. Make the explainer once and stop spending live class time on the same re-teach.
A 90-second video before the lesson gets watched. The equivalent paragraph does not.
A student who missed Tuesday gets the actual explanation, not a set of notes borrowed from someone else.
The same explainer, narrated and labeled in the language a student actually reads.
Attention falls off a cliff around the six-minute mark, and that finding is the evidence base for how the whole product is built. So the tool will not make you a 40-minute video. It makes the short, complete explanation of one idea.
If your lesson has four ideas in it, that is four explainers, and that split is usually the better lesson anyway.
The design rules the generator follows are written down, graded by strength of evidence, and public. So is the spec for how output is evaluated against them. If someone asks why the videos look the way they do, there is a document to point at rather than an opinion to defend.