I know that it\'s impossible to thwart the world\'s most advanced minds, but I\'d like to put the slightest of barriers on my website to keep my students from copying text from
I would suggest you to use:
Here you have protected text
Support for this method could be found here: http://help.dottoro.com/ljwexqxl.php
It is simple and in my opinion sufficient against regular users. To be honest there is no option to fully prevent copying text. One can always use for example Chrome Developer Tools and copy even dynamically loaded text from there.
For more effective protection you should place oncopy
in tag because otherwise it is possible to copy text by starting selection from outer