What do you mean when you say money is scarce and difficult to come by? Are you working but not being paid at the end of the month? I believe those questions must be addressed in order to completely comprehend your context. Assume you are working, the challenge that every country is facing is inflation, and salaries are no longer worth anything; once you receive your paycheck, the house necessities alone will consume everything, and having a decent life is now difficult, that is all I can say with the situation of money today.
Sorry, but the school would have to pay their staff too, I know things a hard a bit these days but that is why you are the parent, try hard and source for money and send them back to school, no matter the difficulties, make sure you provide food and education for your children, it is very important.