A complete leveled textbook and workbook for Grade 4 math, with 89 lessons in 9 units: Place Value, Rounding, Addition & Subtraction; Multiplication; Division; Factors, Multiples & Patterns; Fraction Equivalence & Comparison; Fraction Operations; Decimals; Measurement and Geometry; Measurement and Data. Every lesson teaches the skill with a worked example, then gives practice at three levels: Take Off (with hints), Glide (on your own) and Soar (challenge). Extend and Challenge tasks apply each skill to real problems and push deeper thinking. Each lesson is labeled with the standard it practices (Common Core State Standards for Mathematics). The complete answer key is included at the back of the book. Full-color coil-bound book that lies flat for writing, 8.5 x 11 in, 448 pages.