Middle School Success Deluxe for Windows and Mac. Boost your student?s Middle School Success with the #1 best-selling educational software suite on the market. Ideal for all learning levels the educator-endorsed and award-winning lessons will improve comprehension in multiple subjects including algebra geometry physical science world history American government writing foreign languages and more! Includes free access to Tutor.com and Encyclop dia Britannica CD-ROM. For grades 6-8.