The New York Times ran an interminable front-page piece on Sunday raising doubts about the ethics and propriety of teachers who promote commercial products, especially those from big tech firms like Apple and Google, for use by other teachers and their schools. The example that reporter Natasha Singer focused on—”one of the tech-savviest teachers in the United States”—is an ace third grade teacher named Kayla Delzer, whose classroom is in the hamlet of Mapleton, North Dakota.