Large Calculus Teacher Mug 15oz - Minus One Point. You Forgot the Plus C.

A roomy 15oz mug for the long grading weekend. The slogan "Minus one point. You forgot the plus C." wraps with a graded quiz sheet, lined and hole-punched, with one integral problem solved almost all the way, a red circle and caret marking the missing +C, a stern little -1 circled in the margin and the red pen that did it resting nearby.

The larger size means fewer trips to the coffee pot during a pile of tests. Give it to a calculus teacher, a math professor friend or a student who lost that point once and never again.