This book provides a tool for educators, specifying what K-12 grade students should learn about basic economics as they go through school. The standards are written for teachers and classroom use, offering benchmarks, guides, teaching suggestions, and teaching strategies. The essential principles of economics are identified in the 20 content standards in the book. Each standard is followed by a rationale for its inclusion. Benchmarks for the teaching of each of the content standards are provided, indicating recommended levels of attainment for students in grades 4, 8, and 12. Samples of what students can do to enhance or demonstrate their understanding of the benchmarks are provided. (EH)