Top 10 ck12.org Competitors

cuemath.com

1-on-1 live math tutoring for Grades K-12. Top 1% certified tutors, US Common Core-aligned, 200K+ students across 80+ countries. Try a free class.

splashlearn.com

A fraction represents a part of a whole, written using numerator and denominator. Explore definition, types, representation on number line, solved examples and more.

symbolab.com

Symbolab Service Terms

mathway.com

free math problem solver answers your algebra homework questions with step-by-step explanations.

starfall.com

at starfall, children have fun while they learn - specializing in reading, phonics & math - educational games, movies, books, songs, and more for children k-5 and above.

brainpop.com

Join our online and in-person events for educators and administrators to expand strategies, connect with educational leaders, and network with BrainPOP experts!

phet.colorado.edu

Founded in 2002 by Nobel Laureate Carl Wieman, the PhET Interactive Simulations project at the University of Colorado Boulder creates free interactive math and science simulations. PhET sims are based on extensive education research and engage students through an intuitive, game-like environment where students learn through exploration and discovery.

khanacademy.org

Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.

ixl.com

IXL is the world's most popular subscription-based learning site for K–12. Used by over 17 million students, IXL provides personalized learning in more than 17,000 topics, covering math, language arts, science, social studies, and Spanish. Interactive questions, awards, and certificates keep kids motivated as they master skills.

abcmouse.com

ABCmouse is the leading online early learning program for kids ages 2–8, offering a complete curriculum in reading, math, science, and more.