I will, however, assume that an IT teacher has the ability to recognise, "this isn't working because I'm using an ancient browser". If the teacher is completely unable to use a less ancient browser, the requirement for the project to work on IE6 should be clearly stated, which it was not.

However in this case, my friend just helped the IT teacher install Google Chrome on his computer and showed that the site rendered fine there. I don't know what sort of policies were in place but there were evidently no technical measures implemented to prevent people from installing a modern browser.