Deluxe edition. Follows NCTM guidelines. An I Know It! book. Written and reviewed by mathematics educators, Math 6 includes the most important elements of the sixth grade math curriculum and the skills that cause children the most difficulty. This workbook may be used to introduce, maintain, or review skills. Principles and Standards for School Mathematics, published by the National Council of Teachers of Mathematics (NCTM), was used as a guide in writing this book. Skills include: Estimating; Area & volume; Decimals; Percents; Fractions; Probability. Review, reinforce & accelerate learning! All School Zone products are developed by skilled educators to provide the highest quality, up-to-date curriculum possible. Workbooks: Top-quality content, clear directions, and full-color illustrations make School Zone workbooks the best choice. Made in the USA.