What would you say your occupation is? Primary school or secondary school teacher? I think the first step is to check if your specific occupation on the Skilled Occupations List here:
http://www.immi.gov.au/skilled/_pdf/sol-schedule1-2.pdf. When you find your occupation, contact the organization in charge of assessing your skills and find out the requirements for your skills assessment. You might want to go for independent skilled or state sponsored visa, depending on the number of points your age, years of experience, IELTS score can get you.
I wish you the best of luck.