Yes BBT just as soon as you wake up.
ah I used to work in education so I get that!!! Although, I’ve taken them to work and sneakily done them in the loo (and just checked it later, didn’t wait in the loo for ages, probably not the textbook way to do it though) 🤣.
You can just do LH morning and night, but i do find around ovulation I like to do more but I think that’s just because I find the changes interesting. But mine is raised for over 24hrs so wouldn’t miss it just doing evening and night