My son is doing algebra although only in elementary school, and I've been thinking about how to motivate mathematical study for him. This site may be helpful.

http://www.whydomath.org/

Mathematical and computational analyses have proved to be uniquely insightful for solving a myriad of problems in science, society and our everyday lives. Why Do Math highlights solutions to many of these problems in an engaging, layered, multimedia website and shows that an undergraduate mathematics education can be an entryway to rewarding and engaging career opportunities.

Current topics:

America's Cup
Alfio Quarteroni

Cochlear Implant
Joseph Skufca

Neuroscience Mathematics
Brent Doiron, Eric Shea-Brown

Space Travel
Shane Ross

Tomography
Chris Budd and Cathryn Mitchell

Voting
Michael A. Jones

Wavelets
Patrick J. Van Fleet

I'm glad you posted this because my son currently wants to be a cashier; he says it is the only occupation where he sees people actively doing math!!!! Maybe if he sees it on a website, it will make more of an impact that my telling him that he'll be able to use his math for his other career goals of an astronaut and city planner. Thanks! Nan

Thanks for the great resource, Bostonian!