translation.en: But what we want to do is use the natural conclusion of the flipping of the classroom And so what I'm showing you here, this is data from a pilot in the Los Altos school district, where they took two fifth-grade classes and two seventh-grade classes, and completely gutted their old math curriculum.
translation.zh: 但我们想做的是 用给我们写信来的教师提到 的在课堂中运用视频得出的自然结论 接下来我所展示的内容 都是来自于Los Altos 学区的真实数据。 在那里，我们选了五年级的两个班级和七年级的两个班级 来瓦解掉他们传统的数学学习方式。