MathMom and a picture clue!

My days are a bit boring lately.. Mom start school for real next week and this week she's attending a 6 day brush-up math class at the university. It's mainly for those studying math this fall (obviously) , but is open to anyone. And it's free. Mom thought it's a good idea, as she'll have to take one math class this year and it's been ages. Upon arrival on Monday she discovered she's apparently supposed to take the difficult math class, not the one she thought... I haven't the faintest idea what all this math stuff is, but apparently it's not edible. Or at least not very tasty. I checked her backpack!

So now Mom is "refreshing" the dificult math, i.e. math she's not actually heard about before at all. She had the choice of refreshing the easy math or the harder one, and chose the latter. Hopefully having heard about some of it will be a benefit later, but perhaps actually feeling there's something she remember might have been just as easy. It's really hard to say! At least she got to hear a couple of things about tropical math! It's the weirdest thing.. 2+3=3 and 2x3=5 (That's NOT what she's doing this week, though! But the guy who lecture did that stuff for his degree.)

Anyway.. I'm mostly sleeping this week and telling Mom to relax about the whole math thing!

Oh.. I have some more clues for you guys. Keep guessing!

First a picture clue:
(Did that help you any? Tee hee..)

And the second clue is that it's going to be something that'll keep me company when Mom is away.

Snores, Bajas