hello, i am a retired school teacher
Nice! So you at the point where a person stops employment completely. 
yep, I reached that age of retirement
Sometimes, a person is not fully retired and they may semi-retire by reducing work hours.
you know i heard about that but was not sure how to go about it
It's an interesting topic nonetheless. Just to educate you, the idea of retirement and its origins was introduced during the late 19th and early 20th centuries.
i thought it would have been around longer
Me too. Personally, I would choose to retire when I am eligible for private or public pension benefits, although some are forced to retire when physical conditions no longer allow them to work.
but I may find a part time job just to keep busy, I do not care for retirement
Retirement
Retirement is the withdrawal from one's position or occupation or from one's active working life. A person may also semi-retire by reducing work hours.
An increasing number of individuals are choosing to put off this point of total retirement, by selecting to exist in the emerging state of pre-tirement.
Many people choose to retire when they are eligible for private or public pension benefits, although some are forced to retire when bodily conditions no longer allow the person to work any longer (by illness
The Little People". In it, he writes that “Not all may see the fairy folk at play / nor hear the patter of their tiny feet... / But you have seen them many times before / And heard their pipes ere revelries begin / So when my verses knock upon your door / I am sure that you will let them in!”
Retirement in Kingston Deverill.
In 1937, Shadwell and his new wife retired to Kingston Deverill in Wiltshire where they built a modest home, Barley Close,