This is why simple GNU/Linux based computers with open-source software should become the mandatory platform for schools.
There's no reason that TI graphing calculators should be mandatory in this day and age
There's no reason that TI graphing calculators should be mandatory in this day and age
Laptops running GNU/Linux, despite having no software costs, will still be significantly more expensive than even $140 calculators.
What is needed is an open source, cheap hardware calculator, and as far as I know, nobody has anything like that on the market.