is a non-profit organization that provides a free, world-class online education for anyone, anywhere, offering personalized learning through instructional videos, practice exercises, and a dashboard for tracking progress in subjects like math, science, reading, history, and test prep (SAT, AP). It's used by millions of students, teachers, and parents globally as a supplement to classroom learning, helping learners master skills at their own pace, from elementary through college levels

https://www.khanacademy.org/

 is an online personalized learning platform for K-12 students, offering interactive practice in Math, Language Arts, Science, Social Studies, and Spanish, featuring a Real-Time Diagnostic to pinpoint knowledge gaps and provide customized skill recommendations for focused improvement, helping students build confidence and master subjects at their own pace. It's used in schools and homes, providing immersive content, progress tracking for teachers and parents, and adaptive challenges.  

https://www.ixl.com/?gad_source=1&gad_campaignid=12423316456&gbraid=0AAAAADrr3ArjXN-YyKUBJ6LNuZQNQZy38&gclid=EAIaIQobChMI5r-9ysWukQMVzDcIBR2ArghKEAMYASAAEgLIkvD_BwE