Jim Green was Head of Mathematics at Trinity Catholic College, Lismore, where he has spent most of his teaching career of over 35 years. He has written HSC examinations and syllabus drafts, composed questions for the Australian Mathematics Competition and recently co-authored Maths in Focus 12 Mathematics Extension 2.

Janet Hunter is Head of Mathematics at Ascham School, Edgecliff, where she has spent most of her teaching career of over 30 years. She has been a senior HSC examiner and judge, an HSC Advice Line adviser, and recently co-authored Maths in Focus 12 Mathematics Extension 2.

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