A collection of pre-owned, individual Switched-On Schoolhouse Christian homeschool curriculum discs from the 2013 edition. These multimedia-driven computer courses features automated grading, interactive lessons & built-in quizzes. Included Discs in This Listing:Grade 6: ScienceGrade 8: History & Geography (U.S. History Study), Language Arts, Mathematics: Pre-Algebra Please Note: This listing includes the individual subject discs and their original cases with Product Activation Key/ Serial Numbers stickers intact. The Installation Discs to load these subjects onto your computer are in the original boxes that they came in.ALWAYS BACK-UP YOUR TEACHERS & STUDENTS WORK FILES, TO SAFE GUARD YOUR RECORDS, SINCE THERE ISNO TECHNICAL SUPPORT.IMPORTANT TECHINAL COMPATIBILITY NOTE(Please Read Before Buying)Alpha Omega Publications has officially discontinued the Switched-On Schoolhouse software line & closed technical support. This 2013 software is designed to run on standard English versions of WINDOWS 10, 8,or 7. It WILL NOT work on Windows 11, Apple Mac, Windows S-Mode, or Chromebooks.Because of these technical platform constraints & the lack of factory support, these items are sold AS-IS with no returns. Please double-check your computer's operating system before purchasing. All discs have been visually inspected & are in great physical condition.One owner. Used one school year for 1 student. Non smoking home. Recommended Minimum System Requirements Information in Photos, also photographed subjects with original contents in each box. See photos for more details. I only ship to U.S. locations.