She has been teaching since 1989 and has a wide range of experience in teaching Introductory Maths and Advanced Maths. Now she holds at her school the position as Head of the Technical and Vocational Department. Nor Shawalni Johari is also a teacher, working at the Alam Shah Science School in Kuala Lumpur. She began teaching Science and Mathematics in 2008. Teacher's Guide English version (Word format)Teacher's Guide English version (PDF format)