Title: this is the worst
Product review: I love mathematics and read math book of all sorts, including textbooks. I teach music theory (which is similar to math) at the college level, and have been doing so for the last 18 years. This is the worst math book I have ever seen. Where are the brillant proofs of Euclid? This is a hodgepodge of history, so-called music, and diverse topics thrown into one book, that consists of mearly formulaes and prove it yourself theorems. The Pythagorean formula is circular, if you can follow it back far enough. There are no concepts or brillant ideas, only "you do it this way" as in the old calculus books. The authors are all school teachers, with one college teacher (wow). The school teachers have been complaining for years about how bad the "new math" was when the mathematicians wrote the texts; now it is their turn and they have turned my child off to math by their dull pedantic book. I think all schools should review this book before using it.
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