The secondary teachers' union is concerned about the Government legislating how some subjects are taught.

The Government has announced it'll mandate core teaching requirements in maths, reading and writing.

It's been working on a common practice model to ensure nationwide consistency.

Post Primary Teachers Association acting president Chris Abercrombie told Kate Hawkesby it could make teachers' jobs harder.

He says one size doesn't fit all - so they'll have to think of other ways to teach to support all students.

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