The teachers' strike is about maths. They're still OK with teaching it, they don't want it removed from the curriculum or anything, but teachers have been doing their sums, and they're not happy with the answers they've been coming up with.
No matter what you subtract from a weekly budget, a teachers' salary isn't adding up to a realistic chance of home ownership in our major cities. While high rents, especially in areas where our most affluent schools are located, is making it extremely difficult for principals to retain and attract good teachers.
Therefore the union representing primary and intermediate teachers wants a 16 per cent pay rise over two years. They hope this will make a difference to retention and reverse the fall in people wanting to become teachers. The Government isn't on the same page, offering 4 per cent over the same period.
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That's the money side of the equation, then there's workload. It's not the whole answer, but the workload pressures teachers are vocal about could be relieved by adjusting student to teacher ratios.