The promise of technology in the pursuit of learning is vast — and so are the profits, MindShift reports. The SIIA valued the ed-tech market at $7.5 billion. With daily launches of new products promising to solve all manner of problems — from managing classrooms to engaging bored students with interactive content to capturing and organizing data, to serving as a one-stop-shop for every necessary service, choosing from the dizzying number of products on the market can be confusing…