With more and more technology in the classroom, the quest to find tools that effectively help educators and their students becomes increasingly important—and increasingly difficult. How can educators best identify the products that meet their classroom needs? And how can an edtech company measure how much their product helps students and teachers? Read on for a range of perspectives on how to measure efficacy in edtech, from Pearson to LEAP Innovation, from Remind to the Silicon Valley Education Fund to the MIND Research Institute.