Freckle empowers teachers to differentiate instruction across Math, ELA, Social Studies, and Science. Students automatically work on the Math, ELA, Social Studies, and Science lessons that are perfect for them. Freckle offers content for the following subjects and grade levels: Math K-9, ELA K-12, Social Studies K-12, and Science K-8. Free Services Offered: Always Free for teachers.

How to Use: Sign up for your free account on the website.