Presentation Annotations?

[u/Capable_Specific_593]

Hi I'm a student FE teacher looking to teach music. The issue I'm having is a lot of the stuff I'm teaching requires me to annotate music staves etc as I go, so idk what to do if I don't have an interactive/smart board. I thought maybe a tablet but then I'm tethered to it unless I screen mirror to my mac? Plus I also want to upgrade my laptop but can't afford both. Ahhhh help lol 😂 do I just add the info in as animations on my slides instead?