In fact, when several dozen elementary - and middle-school kids from the Detroit area used this exercise for 15 minutes a day, many showed significant gains on a widely used intelligence test.

实际上，当来自底特律地区的几十名中小学孩童在每天采用这套训练方法15分钟之后，很多人都在一项应用广泛的智力测验中表现出了明显的进步。

You will get some sort of mesh grid on your surface and you will look at a little parallelogram that is an elementary piece of that mesh and figure out what is its area and normal vector.

在曲面上做一些网格，你会看到一个网上的每一小块儿，都是小的平行四边形，我们要弄清楚它的面积和法向量是什么。

This creates a separate entrance and play area for the Lower Elementary program.

创建学校较低空间的一个单独入口和游戏区域。