Second grade teacher Alison Kerr says the main goal is to engage children in the learning process.

VOA: special.2011.03.10

The first grade corresponds to the row player, me in this case, and the second grade in each box corresponds to the column player, my pair in this case.

单元格内第一个成绩是我的成绩,每个单元格第二个成绩是,我对手的成绩

耶鲁公开课 - 博弈论课程节选

And then we'll just throw that grade away; give greater weight to the second and third papers.

那么我们会把这篇论文的分数扔到一边;,给第二三篇论文更大比重。

耶鲁公开课 - 死亡课程节选