Hmmmm, with the english Educational system being slightly different, I actually did both of those in secondary school. At the time, I did both spanish and maths in braille, though I used a laptop for everything else, now though, you could certainly read and write spanish with a screen reader, ditto with maths (If I could do formal logic on a laptop, maths would be easy), though you'll probably need things like braille protractors, rulers, and what used to be called german film, ---- stuff which produced tactile lines when written on with a pen, to do geometry. I'd see whoever provides your equipment about those things.
With respect to the Tv, I'd just ask the teacher how that works, and either work out a way of using it, or an alternative teaching method. I'd certainly recommend though you get a accessible spanish/english dictionary, (I had one in braille, but you could equally get one on your laptop).
Generally though the rule is, if you don't talk to people and cooperate with them, they don't know, ----- even during my degree I found myself asking lecturers for diagram descriptions etc, ---- I even worked out a hole different method of learning formal logic with the lecturer sinse I didn't have any quick way of drawing tree diagrams (it really helped that that particular doctor was a really nice chap as well).
With our dreaming and singing, Ceaseless and sorrowless we! The glory about us clinging Of the glorious futures we see,
Our souls with high music ringing; O men! It must ever be
That we dwell in our dreaming and singing, A little apart from ye. (Arthur O'Shaughnessy 1873.)