Help your 4th graders (or advanced 3rd graders) tackle whole numbers, fractions, decimals, percents, simple geometry concepts, and units of measurement with Teaching Textbook's tried-and-true audiovisual/textbook combination. The student workbook is 669 pages with 119 lessons, while the four CD-ROMs provide step-by-step audiovisual solutions to every homework and test problem. The CD-ROM's digital gradebook grades answers as soon as they are entered and calculates percentages for each assignment; a softcover answer booklet is also provided. Windows 2000. Teaching Textbooks Grade 4.