Calculus has a formidable reputation as being difficult and/or unpleasant, but it doesn't have to be.
Bringing humor and a sense of play to the topic can go a long way toward demystifying it.
The first is a process of subtraction and division; the second, a process of multiplication and addition.
If calculus is so simple and straightforward, why does it strike fear and trepidation into the hearts of so many?
The experience of writing Change Is the Only Constant helped Orlin refine his ideas on how one might move away from longstanding dogma and rethink that traditional approach.
That said, while there are teaching notes included as appendices, this is not a textbook.