Teaching Essential Mathematics, Grades K-8 provides an overview of the most essential concepts students must acquire in depth as they move through school. Written by a national consultant in mathematics instruction and assessment, this book puts expertise in teachers' hands with friendly text and clear examples of how to teach in ways that will lay a foundation of mathematics success for students. The author supplies background information for teaching in each key area of mathematics, including how each concept looks at upper and lower grades. This resource also offers educators supplementary lessons to strengthen their skills in the critical areas of mathematics instruction, no matter what primary resources they are using for instruction.