Iready: A single K–12 adaptive Diagnostic for reading and mathematics that pinpoints student needs down to the sub-skill level, and ongoing progress monitoring shows whether students are on track to achieve end-of-year targets. 

https://login.i-ready.com/

Prodigy:Prodigy is designed to engage students using an adaptive technology to cater to each individual. Prodigy’s personalized approach identifies gaps in students’ understanding and works with them by pulling them back to prerequisite skills and then scaffolding them forward through more difficult concepts.

https://www.prodigygame.com/

First in Math:The program was designed with focus, coherence and rigor as its cornerstones. Self-paced activities target mastery of procedural skills and fluencies that are essential for internalizing and demonstrating conceptual understanding.

https://www.firstinmath.com/.

Brain pop:is a group of educational websites with over 1,000 short animated movies for students in grades K-12 (ages 6 to 17), together with quizzes and related materials, covering the subjects of science, social studies, English, mathematics, engineering and technology, health, and arts and music.

https://www.brainpop.com/