I'm going to curve it a bit,

我会让分数段更有弹性
so actually slightly fewer than a sixth will get straight A's,

实际上略少于六分之一的人会得到A
and fewer than a sixth will get C's and below.

略少于六分之一会得到C
We'll squeeze the middle to make them be more B's.

我们这样压缩会使更多的人得到B
One thing I can guarantee from past experience in this class,

不过从过去的教学经验看
is that the median grade will be a B+.

中间成绩应该是B+
The median will fall somewhere in the B+'s.

分数中位数会在B+的附近
Just as forewarning for people who have forgotten what a median is,

稍微提示下忘记中位数含义的同学
that means half of you--not approximately half,

这也就是说不是一半左右
it means exactly half of you--

是绝对一半的同学
will be getting something like B+ and below

会得到B+的成绩或更低的成绩
and half will get something like B+ and above.

另一半会到B+的成绩或更高的成绩