One possible theme could be perseverance. The teacher may have faced many challenges, like a lack of support from the school administration or difficult students, but still kept going. Another theme might be innovation. They could have come up with new teaching techniques to engage students better.
It depends. Sometimes a story might be loosely inspired by real events but have fictional elements added. So, it's not always a straightforward yes or no.
It's hard to say for sure. A story can be inspired by real events but might have significant alterations or interpretations to fit a particular narrative or genre.