China’s NetDragon has gobbled up another education technology company. This time, it’s Edmodo, one the largest online social communities of teachers ...

“Edmodo struggled, however, to find a business model that would support its burgeoning community. It raised close to $100 million in funding, and began seeking another round last year. The company had shifted to an advertising-based model—although one in which the company was trying to move carefully and respect its audience of teachers...

China’s NetDragon has gobbled up another education technology company. This time, it’s Edmodo, one the largest online social communities of teachers ...

“Edmodo struggled, however, to find a business model that would support its burgeoning community. It raised close to $100 million in funding, and began seeking another round last year. The company had shifted to an advertising-based model—although one in which the company was trying to move carefully and respect its audience of teachers...