@neo_24 first is you need to know kung anong visa ang aaplyan mo, most common is 189 and 190 for PR Visas, there's also 489. below yung details ng documents required, process and other requirements:
https://www.homeaffairs.gov.au/trav/visa-1/189-
https://www.homeaffairs.gov.au/trav/visa-1/190-
Check the ANZSCO code for your profession if nasa list of eligible occupations.
Then you can roughly calculate how many points you'll get (minimum now is 65).
Next, you'll need to get the corresponding skills assessment for your profession from the corresponding assessing authority in Australia. Kelangan din english exam (usually PTE or IELTS), you'll know the scores that you need based sa points calculation mo.
roughly yan yung first few general steps. for teachers specifically search and ask ka lang dito sa forum I'm sure someone will be able to help further