Do Not Differentiate Unless It's For Calculus Journal & Notebook - 120 Pages Lined 6" x 9" This super funny & cute calculus joke says "do not differentiate unless it's for calculus" and is an amazing math themed joke for any math professors or teachers out there who love showing off the humorous side of the mathematics field Grab this hilarious calculus pun as a gift for anyone in your life who is obsessed with math jokes or is having fun in their calculus class this year Great for any kids who are learning to love math and laughing at calculus jokes Empty lined notebook which is perfect as a diary, planner or journal and can also be used for gratitude listing, as a prayer log, or for idea gathering
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