The Essentials version of Musser, Burger & Peterson's best-selling textbook it brings together the many facets of elementary and middle school mathematics in one concise volume. With a focus on providing a complete understanding of mathematics that translates immediately into the classroom, the authors use their proven formula to present all the core subjects, including:* Introduction to Problem Solving* Sets* Whole Numbers* Numeration* Number Theory* Fractions* Decimals* Ratio* Proportion* Percent* Integers* Rational Numbers* Real Numbers* An introduction to Algebra* Statistics* Probability* Geometric Shapes* Measurement Material presented is supported by eManipulative activities, on-line problem-solving tools, and an expanded resource-rich Web site.