This course is not so much about the mathematics of formulas, equations, rules and errors, as about mathematics that can be experienced: counted, drawn, seen, created; quite simply: played with. Officially, we will encounter concepts of combinatorics, geometry, number theory and Boolean logic. Unofficially, we will experiment with puzzles and patterns and develop as much mathematics from them as we can. Prerequisites: high school mathematics and willingness to explore. No credit in science or engineering. This course satisfies the Quantitative Reasoning requirement.