Ahh, remember the good old days when you had to trudge to school with your calculator and your compass? I was looking at the Helix site and couldn’t decide between two maths sets.
The Black Case set comes with a highlighter mouse and a calculator which is pretty groovy:
But the Oracle Maths set has the full circle angle measure with the really cool windy thing on it:
I’m very glad I no longer have to use such things. Well, I have a calculator and a ruler, but that’s about as far as it goes.