Head of Year/RSL job - but what does this mean??

I'm considering applying for a Head of Year job that has come up in school (mostly for the experience, doubt I'd get it) but I cannot get my head around this sentence:

"How you would develop a 'GRIT' approach to academic support from outside the curriculum."

In my letter of application I'm supposed to say how I'd do the above, but I can't decipher whether 'GRIT' is a genuine acronym (deputy head suggested it was, but googling turns up NOTHING) or a gross misuse of the English language. Any ideas?

 

"Grit (personality trait) ... Grit in psychology is a positive, non-cognitive trait based on an individual's perseverance of effort combined with the passion for a particular long-term goal or end state (a powerful motivation to achieve an objective)."

 

https://www.buildinglearningpower.com/2015/11/sorting-out-resilience-perseverance-and-grit/

As previous post says
Also part of building learning power (which was last labour of the month 15 years ago,)

 

Is it this? http://ajjuliani.com/measuring-the-immeausurable-grit-in-education/

Try Googling Grit education acronym

 

Thanks - seems the closest thing to it.

Thank you to other replies as well - this at least confirms that 'GRIT' is not a well-known acronym I should have encountered before!