Math
Formulas render as real mathematical notation, typeset with LaTeX, not as code-style text approximations. A math slide holds one formula or a multi-step derivation with aligned steps.
The pointer works inside the formula: while the narration explains the discriminant, the pointer hovers exactly that part of the equation, then moves to the next term as the explanation continues. A derivation is walked line by line the same way.
Where a formula states the result, an animation can show the quantity it describes actually moving, and a code slide can show the same rule implemented.
Getting good math slides
Any topic with real math gets these automatically: complexity analysis, statistics, graphics, machine learning, physics. Ask for the derivation if you want the steps, not just the result: derive the update rule, step by step.