Two groups of students are expected to memorize 100 hundred complex problems almost immediately after having seen them: medical school students and ...THIRD-GRADERS! Shortly after being introduced to the idea of super fast addition (multiplying), these third-graders are tested on whether they have already memorized it. If we allow students to use the multiplication grid or Noble's Columns© until they have memorized the multiplication tables, math scores would improve dramatically. Why? Because student would keep working, and therefore keep learning, instead of giving up on math at such a very young age.