We consistently see a return on recess that pays dividends , not just on the schoolyard , but in the classroom as well .
我们能不断的看到关于课间休息的反馈,不仅是在操场上,教室里也一样。
Safecast 's 20 fixed sensors and 15 mobile units , which identify " hot spots " by going from schoolyard to sandpit , seekto fill a gap in the official information .
Over the course of several interviews , batarfi told me that he witnessed his friend 's emergence during those years , at about age fifteen or sixteen , as an increasingly committed schoolyard islamic activist .
But at the very least , the cognitive techniques give parents and students , young and old , something many did not have before : a study plan based on evidence , not schoolyard folk wisdom , or empty theorizing .