Since schools began shutting down to curb the spread of COVID-19 in the United States, distance learning has become an increasingly essential tool for the U.S. primary and secondary education sector. But for the companies selling those technologies, uneven financial resources and inconsistent curriculum standards across America's 13,506 school districts will preclude any national "one-size-fits-all" approach to the U.S. market. Instead, companies will need to design flexible and highly customized products and instructional content in order to seize the opportunity at hand, and become a mainstay of classrooms across the country....