"We're expected to do the impossible": Why are so many teachers quitting?

A lack of funding and rising workload are leaving teachers and students disillusioned - but figures show the tide could be turning.

Last year, more than six in every 1,000 teaching posts were empty. Pic: BBC LDRS

After growing up with a teacher for a dad, Caroline swore she would never go into teaching. But that changed when she moved to Canada and began volunteering with impoverished and homeless children.

“I couldn't understand how you could end up being illiterate having spent you…