itsbrokenagain
The old UK ATPL nav papers were not multi choice in fact they were essay type. Seeing I did them I would know. The fact you taught a course in 4 weeks says a lot for your knowledge and instruction. The modern ATPL is multi guess which allows amateurs to provide questions and learn answers by rote to pass the exam. I am glad you are flying corporate and not teaching,the profession is better of with guys like you out of it than pretending to know what your doing.
The ARB subjects were multi-choice, but that was not part of the ATPL it was part of the CPL.