That's par for the course

I am 9 years old and need to know the meaning and origin of That's par for the course for my homework please. Thank you

Daniel D.

That's what I expected would happen.

PAR FOR THE COURSE - "(from Latin 'par,' equal, meaning the score an expert golfer is expect to make on a hole or course, playing without errors; used as a slang expression meaning 'as expected.'" From "Speaking Freely: A Guided Tour of American English from Plymouth Rock to Silicon Valley" by Stuart Berg Flexner and Anne H. Soukhanov (Oxford University Press, New York, 1997).