On April 7, 2013 at 22:47, Ernie Gilman said...
bcf inadvertently raises a very likely possibility: the teacher might just mean "a wire" but is saying "an HDMI cable."
Teachers know a lot about what they are doing, but it is very possible that this teacher means graph and does not realize that a line plot is a specific kind of graph. That might be why we all had to use google just now, despite thinking to ourselves "is that a graph?"
Textbooks can be even dumber than that.
How about giving the teacher the benefit of the doubt? Just because you (plural) didn't quite know what a line plot is, doesn't mean the teacher doesn't know. We should assume it's part of the curriculum the teacher is supposed to cover & he/she should be familiar with the terminology. I knew exactly what a line plot looks like as soon as I saw the phrase in the OP. I bet many others who might read this thread would too.
On the other hand, I bet there are as many incompetent teachers out there as there are incompetent (insert an occupation here).
