After seeing a reference to it, I ordered a very cheap, used copy of Innumeracy by John Allen Paulos. Innumeracy is a somewhat useful, easy-to-understand, relatively short, and fun to read book that is only moderately worth reading because I don’t believe it to be particularly unique (although it is more worth reading if you’ve never been exposed to something similar).
I did enjoy some of the examples and useful demonstrations of certain ideas. However I was most amused by parts of his blaming the educational system for the society’s Innumeracy problem. Paulos remarked that he became determined to be a mathematician at the age of 10. That year he had calculated the ERA of some, apparently horrible, pitchers for the old Milwaukee Braves. Ten year-old Paulos found that his ERA was 135. When he described this finding to his teacher, his teacher had him explain this to his class. His teacher then explained that little Paulos was wrong because everyone knew that ERAs couldn’t be higher than 27. The teacher of course was wrong. But this explains part of why Paulos, and I, think that math is not given its due in education: teachers are afraid of being shown up by bright 10 year olds.
[Side note: I've frequently held the belief that my success in life came despite, and not because of, the efforts of many of my primary school teachers who, no doubt, would like to be able to claim a supporting role. My secondary teachers, on the other hand, were quite fantastic.
It dawned on me this last week why I skipped class so much in college. Its because I learned how to in elementary school. I was rarely an absent student. I probably averaged 0.5 absences per year between grades k-12. However, in grades 4-6 I was in an art program which met 1 day each week and was hosted at a different school; I missed almost an entire day of school each week. To compensate I simply learned to teach myself.]
For the numerate, the book is perhaps a decent review of some types of problems of that have been long-ago learned and since forgotten. I’m optimistic that the information in the passages I highlighted will, in the future, be useful to me and my career. However, it seems like I could have gotten a similar review of material that was much shorter and more to the point.
For the innumerate, Innumeracy may serve as a decent wake up call that, ya know, math is kinda important. And if you don’t know math or aren’t good at even some of the simpler concepts, it will be used against you (in a court of law?).
Overall Innumeracy was a pleasant read. However, the 2nd half of the book left me disappointed by failing to add any value to the first half. It deserves 3 stars out of 5.
Addendum: Having read through some of the reviews on Amazon, one, which gave the book 2 stars, makes an important point. (more…)