Sam Chaudhary takes his time. The founder of ClassDojo, an edtech consumer app that focuses on student classrooms, spent eight years building the company before introducing a formal revenue model. All while raising over tens of millions in venture capital from elite Silicon Valley investors and eyeing a big mission: become the brand families can [...] Hear ClassDojo and SignalFire unpack edtech's opportunity ahead on TechCrunch Live by Natasha Mascarenhas originally published on TechCrunch