Mangahigh.com is one of the world's first games-based-learning sites, where students learn Mathematics via purpose-built casual games that balance fun and learning.
Free math graphing tool Desmos released Polygraph, a collection of four new classroom activities focused on a game involving lines, parabolas, rational functions and hexagons. It works like Guess Who, where one partner picks a graph and another asks yes/no questions to figure out what the graph is!
Brilliant is one way to keep your science and math whiz kids regularly engaged and challenged. Students receive challenge problems each week that they complete and then compare against their peers all over the world. They can see where they match up against others based on country and age, and share strategies with others students. The site also hosts competitions involving game theory, writing algorithms, and other fun shenanigans.