This fourth edition features minor updates, including new illustrations and instructions for the latest versions of Word and Excel. Please note! In order to use this curriculum a sold-separately CD-ROM must be ordered; either MicroWorlds EX or MicroWorlds 2.0 may be used.
Microworlds EX will run on Windows 98 through Windows 7, as well as Macintosh OSX 10.3.9 or higher. MicroWorlds 2.0 will run on Windows 95 through XP, and will not run on Vista or on a Macintosh.