@ seethal rose,
1. Nurses who are employed as school nurses make up less than one percent of all the nurses employed in Ontario. Where I am, public school nursing positions were cut in the 1990's due to budget constraints. Currently there are liason public health nurses, liason nursing positions usually require a masters degree and public health experience (you can look up the role on toronto public health). There may be job opportunities for school nurses through private boarding schools
in Canada, look up private schools and check their school websites for career opportunities.
2. If you have worked four out of the past five years, just list the employers you have worked for during the four years.
3. NNAS needs to assess your BScN/BSN degree to see if it is comparable to a Canadian entry to practice nursing education. I don't know if it will make any difference if you have your masters degree assessed at the same time. Ask yourself, if you don't have it assessed and your education is found not comparable, will you wonder if including the masters degree education in your assessment would have made a difference? If you would always wonder, than for your own peace of mind, include it.
4. Re: IELTs or proof of English, the proof of language route may
be more problematic than doing the IELTs. English is the primary language that you are using in your workplace as a school nurse, but is it the primary or secondary language of the clients? Also, I think you should find out what you need to do in order to show proof of English.