Cignition’s Fog Stone Isle
Free! This math game for middle schoolers was recently profiled on KQED for bringing neuroscience into its design. With a virtual world slightly reminiscent of Minecraft, Cignition’s initial activities focus on fractions (currently free to use, though future sections of the program will require payment to use).
PrepFactory
Free! The SAT: Every high school students knows it (and most likely, some dread it). If your students are prepping for the test giant over the holiday break, or comparable exams like the ACT, PrepFactory is worth a gander. Games, practice sets, and step-by-step breakdowns help students work through confusing concepts or questions they might’ve gotten wrong.