MATH

CK-12 Foundation provides a library of free online textbooks, videos, exercises, flashcards, and real world applications  

PhET provides fun, free, interactive, research-based science and mathematics simulations. 

Desmos offers best-in-class calculators, digital math activities, and curriculum to help every student love math and love learning math. 

GeoGebra is a dynamic mathematics software for all levels of education that brings together geometry, algebra, spreadsheets, graphing, statistics and calculus in one engine. 

Prodigy Math Game is an interactive and engaging adventure that helps build 1st to 8th-grade math skills.  

Mathcha is an Online Mathematics Editor. a fast way to write and share mathematics. 

Created by teachers, this highly interactive tool provides an easy-to-use workspace where students can practice proofs while exercising their deductive reasoning muscles. 

Virtual Nerd provides an online, standalone platform that contains video tutorials for algebra and introductory physics, assessment problems, and a reporting dashboard. Teachers can assign videos and practice problems to students in the form of a playlist. 

Symbolab: equation search and math solver - solves algebra, trigonometry and calculus problems step by step. 

Graspable Math allows students to interact directly with algebra equations in an innovative way. By learning just a few easy gestures, students can drag elements of an equation from one place to another, combine, simplify, or expand variables, and create step-by-step solutions to various questions.