This Math in Focus Homeschool Pack contains the Math in Focus books needed by 2nd grade students as well as the answer key. This Homeschool kit includes: Workbook 2A, 256 pages, softcover. Workbook 2B, 264 pages, softcover. Textbook 2A, 305 pages, hardcover. Textbook 2B, 328 pages, hardcover. Homeschool Answer Key, 182 newsprint-like pages, softcover. Unlike the Grade 2 Math in Focus: The Singapore Approach Grade 2 Student Pack, it does not include the assessments book, and unlike the Math in Focus: The Singapore Approach Grade 2 First Semester Homeschool Package and Math in Focus: The Singapore Approach Grade 2 Second Semester Homeschool Package, it does not include the full teacher's edition. The full teacher's edition provides objectives, material lists, games, detailed step-by-step lesson instructions, and reproducible blackline masters; however, they are not required to teach this curriculum. Based upon the Singapore method of teaching mathematics, Math in Focus features a problem-based approach that builds on a concrete-to-pictorial-to-abstract progression. Within each grade fewer topics are taught, but at a more in-depth level; visual representations, modeling strategies, and a development of conceptual understanding, place value, and computation fluency help students to understand the "how" behind their exercises. The consumable student workbooks provide practice, assessment, and skill-development exercises based upon the text lessons. In the textbooks, cheery illustrations and easy-to-understand lessons give kids a fun atmosphere to work in and a simple way to understand abstract math concepts. The answer key includes the answers to the practice exercises, "Put on Your Thinking Cap" exercises, math journal activities, and chapter review/tests. Four student pages are reproduced on each answer key page with the correct answers overlaid. Please note that this key only contains answers; no teaching instructions are included. Black and white newsprint-like pages. The first semester (2A) covers numbers, addition & subtraction to 1,000, bar models with addition & subtraction, multiplication and division, metric measurement, mass, and volume. The second semester (2B) covers mental math, money; fractions, measurement, time, multiplication tables 3 & 4, picture graphs, lines, shapes, and more. Real-life problems are integrated throughout all chapters.