This is so brilliant I have shivers. And is the CASE IN POINT of why I think teaching kids to program is so important. This 8th grade student used basic information about the teenage brain, as well as her passion for programming to create an app that scans what you are writing (without violating your privacy no less) and sending you a pop up message whenever one of the cyber-bullying trigger words appears.
Read more about this amazing student and unique idea. And if possible, share with your students. It is a shining example of how you can use computer science to make the world better.