Rachel Whan has been teaching Science and Mathematics for over 25 years. She has shared the knowledge and understanding gained through her Veterinary Science degree with students, including ATAR Biology, Chemistry, Human Biology and Mathematics Methods students. She has also been the Head of Science at St Brigid�s College and Holy Cross College. Rachel has used her understanding of the curriculum, alongside her teaching and learning practices, to author textbooks for the MYP, 7 � 10 Science, ATAR Chemistry and ATAR Human Biology.