What it is: Check 123 is a new video encyclopedia site for kids. All videos are validated and ranked by Check123 professionals, are 1-3 minutes in length, and a curated on just about any subject you can think of.  Broad topics covered on Check123 include: history, sports, politics, food, performing arts, economics, earth, nature, tech, philosophy, music, cars, pets, human body, arts, geography, religion, psychology, TV, gaming, science, literature, fashion, media, and space. How to integrate Check 123 into your classroom: Check123 is a great place for students to begin their research. These videos are between 1 and 3 minutes…