MemArith

MemArith is an interactive computer program that teaches and exercises mental arithmetic skills by providing a series of arithmetic sequences, and inviting prediction of each next statement in a sequence. Users look for clues in their race to type each next number or symbol before the program does, and they find the clues in more and more places as they recognize more and more mathematical relationships. They also learn to enjoy their own ability to recognize relationships. MemArith will run on any DOS PC using Windows 95 through XP.

• The user should approach this program in the spirit of discovery.
• The user's purpose is to figure out how the program works and what options it offers.
• The user's second purpose is to figure out what the program teaches and how.
• To learn more about the program see sample user sessions in the sidebar.

Sample User Sessions

The MemArith program offers 15 separate paths, with 99 sequences (columns) in each path, and 16 related problems per sequence. The 15 paths differ as to learning goals and level of difficulty. Following are some snapshots (in PDF format) showing users' work, along with explanatory comments: