aparrish, celebrating nearly 100 years of "educational institutions must adopt [this tech thingy that i want to sell] or risk falling behind the times" https://www.si.edu/object/pressey-teaching-machine%3Anmah_1367149
aparrish, celebrating nearly 100 years of "educational institutions must adopt [this tech thingy that i want to sell] or risk falling behind the times" https://www.si.edu/object/pressey-teaching-machine%3Anmah_1367149