

: A 30 day, free trial, or 2 months for $5.Preschool through high school, unit studies, etc. : Tips on getting started, free printables, worksheets, games, and activities.: Free worksheets for all subjects and grade levels.They make it fun, so the kids earn badges and feel accomplished! It is intuitive, so the children can advance or slow down as parents see fit. Parents can open a free account for each child. They even offer test prep for SAT, ACT and other assessments. The site is wonderful for math, but parents can use it for most PreK-12 subjects.

It is now well-funded by large corporations, so it is always free. His videos became very popular, so he created a web site. Sal Khan, an MIT grad, made math videos for his struggling niece.
