When an applied post is closed does it mean I was not considered?
I believe so, as your qualification needs to be in accordance with the job you desire to teach!
Welcome to the forum! Natalie is correct, if your application is closed either the job has been filled or you did not meet the requirnments.
I would recommend you to keep an open mind, have another look at the job board and apply to the jobs you are interested in and qualify for