Teachers Urge Google to Create Search Engine for K-12 Students

How do students conduct online research for their K-12 classes? Do they systematically pursue a topic, use critical thinking to evaluate sources, and focus on the assigned topics? Or do they wander, often confused and easily distracted, from site to site? Is it possible for Google, the creator of the best online search engine,to create a specialized search engine just for K-12 students? Could...