This is Gooru, a collection of wonderful resources for many subjects.
Watch the overview here: Gooru
Gooru is currently enabled for our google email accounts – you can find it under the ‘more’ tab on the top of your email.
Description from their site: This short video introduces Gooru, a free search engine for learning. Learn how teachers and students can use Gooru to search for rich collections of multimedia resources, digital textbooks, videos, games and quizzes created by educators in the Gooru community. Collections are aligned to standards and currently cover every 5th-12th grade math, science and social science topic, with more subjects coming soon.