negativity app for iPhone and iPad

This app is for helping students learn how to work with negative numbers. Each operation has a section for learning and a section for practicing. Feedback on how the user does is also given in the practice section. Problems are randomized so that the user can practice on a large set of questions. Everything is designed so that the user can work at her or his own pace. Students can use it by themselves and, of course, its even better with someone to guide them.

Feedback is always welcome through the website.