The crafty teacher tells PEOPLE how she brings her colorful, creative ideas to life each year Yennifer Castillo has gone viral for the creative classroom ... as a high school teacher this year ...

Her classroom in Northern Idaho is now bathed in brown, cream and beige, for a “homey, cozy feeling,” as the 27-year-old teacher puts it. Thrifted bohemian rugs, groovy flower pillows ...

This trolley cart is extremely DIYable. Twinkling lights and DIY signs turned this classroom into a room straight from Hogwarts. This room is the definition of magical. Get creative with your door ...