Early primary-grade math lays the framework for all later mathematical skills, and is also vitally important for everyday life. Ensure that your students understand every aspect of adding and subtracting multiple numbers, writing fractions, carrying, multiplication, money, telling time, advanced place value, mental multiplication, whole numbers, decimals, perimeter, area, temperature, the metric system, and bar & line graphs with Teaching Textbooks 3. The workbook contains all the problem and practice sets, as well as written summaries of each lecture; the summaries conveniently allow children to skim over the text instead of re-watching the lecture if they forget a key point. An included digital gradebook grades answers as soon as they are entered and calculates percentages for each assignment. The CD-ROMs feature step-by-step audiovisual solutions to every one of the thousands of homework and test problems. Teaching Textbooks 3 is designed for Grade 3, or advanced Grade 2, children. 118 lessons, 17 quizzes. This full-year curriculum kit includes: •A 604-page spiralbound, consumable workbook •An answer booklet, 33-pages, line-listed, softcover. •Four CD-ROMs with step-by-step audiovisual solutions to every homework and test problem. System Requirements: PCs: •A CPU of 1.0 GHz or faster •A Windows XP or later operating system •256 MB RAM •A 4x CD-ROM drive •Speakers MAC: •A CPU Processor type of: G3 PowerPC / Intel Solo •Processor Speed of: 500 MHz / 1.0 GHz or faster •Mac OS 10.4 or later •256 MB RAM •A 4x CD-ROM drive