Australia

We shouldn't concede that the public has to pay more to fix this problem. We just need to pressure our government representatives to prioritise funding for education above that of other areas.

The average teacher makes $84,810 per year.
It is estimated that there are 307,041 full time teachers.
This equates to a full teacher salary budget of $26B. We know that education is managed at the state level, but let's just experiment with a scenario whereby the federal government decides to provide a funding boost to salaries. Giving all teachers a 25% pay rise would cost $6.5B per year.
How much was the 2023 budget surplus just recently announced by the government? $22B.
So, the government could have covered a 25% pay increase to all teachers in Australia, using a third of the surplus that they realised in this year's budget.

Ok, that's for one year, but what about future years, you might ask...
Well, how about we take some of the funding from the scrapping of Stage 3 tax cuts. The Parliamentary Budget Office estimates that the cost of the Stage 3 tax cuts will be $313B over a decade ($31.3B per year). Those tax cuts could even be watered down so that they don't impact lower incomes. The top 20% of income earners in the country receive 73% of the benefit from those tax cuts.
Let's only have tax cuts for the bottom 80% of income earners. That would still give us $22.8B per year in extra budget that we allocate to education. It's that simple.