(Ages 10 and up, 22 pages) The intrinsic value for math is “learning to think and self-govern using correct principles.” This student workbook contains 15 principles of percents, and an introduction explains to the student why it is important to understand how percentages work. Students learn the relationship of percents to decimals and fractions. They also learn to solve percent problems by writing “basic percent equations.” Principles of multiplication and division are also included, as well as several reviews and answer keys throughout the book. This method is different from other math books because students are expected to create and solve their own math problems. They can go as deep and difficult as they wish in order to challenge their understanding and knowledge of the use of percents.