In the Humanity Against Hunger web module, students become volunteers to help solve the severe food shortage faced in Africa. Through the interactive experience, students learn how nitrogen, potassium and phosphorous deficiencies can stunt plant growth in different ways. They also learn how replenishing the land with fertilizer can help farmers achieve higher yields of crops to feed more people. And because it's on the Internet, it can either be used as an in-class learning aid, or assigned as homework.