What's on
the blackboard
6x-32x-5(6)+45678909765v-55^3+67(34)=3
What
the teacher
see's
2+2=4
What the
students see
dgfhjbsddkjhdue;apcoems
iau382612043-mvnudnsuhucew
What the
students remember
What's on the
test
812632467527627626492+82643
77^4(787576)-2677642x+2y-37^2
7273645363-72347544x(34231)^7
+63456789987654345(5678)^472
2345678987654+3245-632762^4