This set is designed to be used during the second half of the year. The teacher's guide features objectives, materials needed, and a list of page numbers; teaching instructions are provided in a step-by-step, listed format that's incredibly easy to see and read. Reduced student pages are given with the correct answers overlaid. The textbook is designed for the 2nd half of fourth grade, and covers adding & subtracting decimals; angles; line segments; squares & rectangles; area & perimeter; symmetry; and tessellations. Real-life problems are included throughout all chapters. Examples are provided alongside helpful representations and explanatory text; fun games, hands-on activities, math journal, "put on your thinking cap", chapter wrap-up, and review/ test exercises are also included. The consumable student workbook provides practice, assessment, and skill-development exercises. Cheery illustrations and easy-to-understand text give kids a fun atmosphere to work in. Each chapter includes "Put on Your Thinking Cap" exercises and often a math journal exercise. 2-chapter cumulative reviews and an end-of-year review test are also included. This Math in Focus 4B kit includes: Math in Focus Teacher's Edition Grade 4 Part B, 255 pages, indexed, spiralbound, soft front-cover, hard back-cover. Math in Focus Student Book Grade 4 Part B, 266 pages, hardcover. Math in Focus Student Workbook, Grade 4 Part B, 170 pages, softcover.