Games are a great way to enhance fun learning for all ages.

Here is more about a new game that is in BETA, Radix Endeavor for high school students. It could be used by adults needing to pass the STEM part of the GED. I signed up to play and created an Avitar.  Why don't you introduce this to higher level adults and see what they think?
Sandy


-More
---------------------------------------

MIT researchers have been developing the Radix Endeavor, a multiplayer online game designed to reinforce science, technology, engineering, and math learning for high school students, since 2011.
The game covers biology, algebra, geometry, probability, and statistics, and also is aligned to the Next Generation Science Standards.

Students are players on an island with unknown plant and animal species and must solve various problems as they explore the island. The game’s multiplayer component, MIT researchers said, helps students call on shared knowledge and collaboration as they develop problem-solving skills.
Task-based assessments, sorted by topic, are embedded throughout the game, and the game uses data to offer players feedback about their strategies and progress.

That data also appears in an educator portal so that teachers can monitor student progress and adjust instruction accordingly.Radix Endeavor is funded by the Bill & Melinda Gates Foundation and is being developed at the MIT Education Arcade in collaboration with Filament Games.