The Bible wasn't written as a science text book so don't get too wrapped up in the wording like "four corners of the earth", etc. We all know the earth is spherical and yet we use this phrase today. To Joshua, the sun stopped in place - in reference to where he was IT DID.
No one is suggesting we use the Bible as a textbook in biology class just as I wouldn't suggest you use a biology text book from 100 years ago. Scientific terminology, technology, and theories change over time and so does the non-scientic. You may not agree with the terminology used by the Bible's writers but the truth is still the truth.
"No one is suggesting we use the Bible as a textbook in biology class"
Read the article:
"There's nothing wrong with the Bible being added as a reference text," he insists. "If the science classroom is asking questions about how old the earth is, then this"—Hofland pats a tiny blue Bible—"is as good of a reference as rocks in the ground."