Plane Geometry - Bruce E. Shapiro

4 SECTION 1. PREFACEre-learning it from a different perspective) should help make you betterteachers in the end. There is a lot of work to be done, and a long andbumpy road ahead of you.However, the more traditional approach in ourstate is to learn the content material first, then study pedagogy.Spring 2012 ReflectionsThe notes have been only marginallymodified this semester, primarilyto reflect an easier to read pagesize 2 . I have also run thingsthrough the spell-checker and fixedprobably half of the spelling errors.Unfortunately the grammarand style is still atrocious. I didhave fun discovering such interestingspelling corrections that weresuggested such as circumciser forcirumcenter; orthodontic for orthocenter;verticals for vertices; Nebraskafor Bhaksara; saccharine forSaccheri; Stouffer for Plouffe; geographyfor geogebra; confiscatefor Chudnuvsky; and YardmasterKandahar for Yasumasa Kandahar.The Mohr-Moscheroni Theorembecame the More MaraschinosTheorem; Clairut’s Axiom the Clairol Axiom; Boylai’s Theorem the BonsaiTheorem; and our venerable textbook by Venema, was reduced to a pitifulenema. I also discovered that non-mathematicians spell pointwise astwo words or with a dash, as in point-wise, and that I can’t spell isoscelesworth beans. I guess, like the scarecrow, I deserve my Th.D. (Doctorate ofThinkology), for that.Spring 2013. I’ve fixed all of the bugs that were discovered last spring,added some stuff on the common core, and shortened the original preface,though I think its still too wordy.2 That is, for me, with low vision, standing in front of the class, lecturing.« CC BY-NC-ND 3.0. Revised: 18 Nov 2012