I am a little surprised that most in the linked Stack Overflow comments seem to be losing their collective minds over a trivial naming problem. Unicode gives the names 'less than sign', 'single left-pointing angle quotation mark', 'left-pointing angle bracket', 'mathematical left angle bracket', and 'left angle bracket'. Take your pick and add the word 'double' to the front. I would shorten to 'double left bracket' if context clues make the outcome obvious. The same applies to the right-hand version of the symbol.
It is a shame that the various programming language authorities don't specify the appropriate language as it would improve accessibility and clarity. But this makes little to no difference in the described classroom setting.
which form the crux of scientific inquiry on human contribution to global warming conducted atop the world's largest active volcano?
Real Programs don't use shared text. Otherwise, how can they use functions for scratch space after they are finished calling them?