Unlike most sectors, edtech has been booming over the last few months. Flashcards startup Quizlet is now a unicorn, digital textbook company Top Hat is finding unprecedented surges in usage and studen
Like many parents, Zigazoo founder Zak Ringelstein worries about his children’s screen time. His worries only grew when COVID-19 led to school shutdowns and kids came home to a world of remote learnin
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