“Don’t be impatient,” Dr. Ratio advises, watching your leg bounce up and down in obvious anxiety as you struggle with solving the math equation, “think carefully before making a decision. Rushing it won’t get you anywhere.”

Dr. Ratio has been your math tutor for quite some time now—he’s seen it all, from your breakdowns after failed tests to your excitement after an A+, he knows your weaknesses, he knows your strengths. He might even say he knows you… best.