"Lehrer." . . "Schule." . . "Filmstrips in education." . . . . . . "Recalls the baby boomer learning through filmstrips at school."@en . . . "Change your underwear twice a week : lessons from the golden age of classroom filmstrips"@en . . . "With simple illustrations and quaint photographs that evoke a more innocent era, Change Your Underwear Twice a Week is the first book to collect dozens of filmstrip treasures together, creating a panorama of four decades of overlooked graphic design, popular culture, and inadvertent humor. It is also a glimpse into the companies and eccentric pioneers who created these graphic gems and how they influenced several generations of American youth.--[book jacket]." . . . . "Change your underwear twice a week : lessons from the golden age of the classroom filmstrips" . . . . . "Education Effect of technological innovations on." . . "Film." . .