A little while back I gave a test from the teacher’s book to my Jr High kids. One of the questions was to think of another item in the same category as the examples given.
For instance, if you see car, bus, and motorbike then you have to think of another means of transport.
The examples given were mushroom, and two vegetables. The answer key specified that the answer should be ‘another vegetable’, but one of my kids argued that mushroom is not a vegetable therefore any food should be acceptable.
He’s right, so he got his grade revised.
What do you do when books teach stuff - not language, but general education - that you believe to be incorrect? Any other examples?
On a more language-related note, I came across a book a while back that named a whole bunch of farm animals - horse, chicken, cow, and hog. Why couldn’t they just say ‘pig’? At that level it’s confusing for students and serves no useful purpose.
Isn’t there some standard list of names for things somewhere that language book writers have to refer to? If not, why not? It’s bad enough with differences between all the flavours of English but when people go around introducing additional complications that’s just plain silly.