What do bookmakers do when facts change and issued textbooks contain the old "fact."

for example, since i don't think this makes much sense, when we found out that Pluto isn't a planet, new textbooks probably contained that but what about old science textbooks that students have? wouldn't they be learning the wrong thing by reading that?
I hope you understand this and thanks!
mysterychicken (frequent jishka user :)

4 answers

That's what good teachers are for -- to notice those errors in textbooks and to notice and explain the correct information for students.

I've seen errors in English, math, science, and history texts. Good teachers take advantage of those to teach a good lesson.
well then i feel sorry for people who have bad teachers. they'll just get the wrong facts!
thanks :)
I absolutely agree. I believe that these changes need to be put in books. But as you know getting new books are hard to get.
Books are very expensive and schools can buy new text books only after they been used for several years.

As Writeacher pointed out, good teachers are expected to keep current and teach their classes up-to-date information. The textbook should be used as a guide, not a bible.