(There's no video for ClassWorks 5 yet. Please contribute to MR and add a video now!)(There's no screenshot for ClassWorks 5 yet. Please contribute to MR and add a screenshot now!)
CNS ClassWorks was a collection of popular educational software (courseware) integrated with its own curriculum management software. It was originally created for the Apple II by Computer Networking Specialists, who would later change their name to Curriculum Networking Specialists. In the late 90s/early 2000s, it went over to Knowledge Adventure and a subsidiary of Houghton-Mifflin Harcourt known as Curriculum Advantage. Curriculum Advantage still owns the rights to the ClassWorks name, and ClassWorks still exists, albeit online only, and featuring mostly its own educational software, rather than popular titles that earlier versions had, such as JumpStart, Math/Reading Blaster, etc.
ClassWorks 5 was the last version to receive a physical release. In the late 2000s, Curriculum Advantage released an online version, which eventually became the sole supported version, and is where it stands today. The online version features the same reward animations and many of the same games as ClassWorks 4 and 5.
ClassWorks 5 was also known as ClassWorks Gold; later versions were known as ClassWorks Gold Edition 2. Like ClassWorks Silver, courseware was divided up into grade level: K-3, 4-6, 6-8, K-6, and K-8, and subject level (Math, Language Arts, or both). Curriculum Advantage released ClassWorks Gold for High School in 2002.
ClassWorks was designed to run on a network. While the front-end can be installed on a computer that's not part of a network, it's pretty useless on its own without any courseware (modified versions of pre-existing software with special drivers). Courseware should be installed on a server to ensure full functionality.
(There's no download available for this software yet. If you've got a copy of that software, upload it now!)
Emulating this? It should run fine under: QEMU