Find reading, writing, math, and languages for kids of all ages. Jack Hartmann Speaking of songs, Jack Hartmann’s channel has so many to choose from! Mystery Doug Doug tackles the most important questions, like “why don’t people fall out of roller coasters?” or “is it possible to ...
whether it’s on TV, commercials, YouTube—a lot of it is very inappropriate and not good for kids or anybody in general. And so looking around on YouTube, we knew that there was a gap that needed to be filled.