 students who are not able to do basic math operations. And he says that if you're asking kids to draw pictures every time you're having to do, let's say, fractional multiplication, that is insane because they cannot do that for the rest of their lives. And when I interviewed a math professor at a California college, he says that the kids who are coming into his college have no algebra skills. So they can't even do algebra. So of course they can't do higher math like calculus.