Developed from a course on the history of mathematics, the book is aimed at school teachers of mathematics who need to learn more about mathematics than its history, and in a way they can communicate to middle and high school students. The author hopes to overcome, through these teachers using this book, math phobia among these students. The book develops an appreciation mathematics by not only looking at the work of individual, including Euclid, Euler, Gauss, etc. but also how mathematics developed from ancient civilizations.