Make mid-grade math a marvelous adventure! Kids practice multiplication and division fractions decimals and more as friendly ocean creatures add smiles and a splash of color to almost every page. It s a fun approach to serious problem-solving. Math Basics 4 includes the most important elements of the fourth grade math curriculum and the skills that give children the most difficulty. The workbook is aligned with the Common Core State Standards for Mathematics a comprehensive set of learning objectives created to help students succeed in math. It is also consistent with Principles and Standards for School Mathematics a publication by the National Council for Teachers of Mathematics (NCTM) and it is compatible with Singapore math pedagogy. The lessons are in sequence; skills introduced in one lesson build on those taught in previous lessons. It s a perfect way to introduce review and maintain essential math skills.