There is preschool then kindergarden then 1-12 grade there is elementary school middle school, high school then college is optional
Yes, it is. It is graduation from high school, or also called secondary school graduation.
12.3%
Yes - 9th grade is generally the start of High School for most US students.
December is the twelfth month of the year
The compound noun 'high school' is a concrete noun as a word for a building that houses grades 9 - 12 (in the US); a word for a physical thing.The compound noun 'high school' is an abstract noun as a word for any of the grade levels 9 - 12 (in the US); a word for a concept.
There is no exact age, but generally if a student has completed all former grades without retentions they should be about 13-14 years old when they get to 9th grade (high school).
Because its preparing us for senior school
Most places have elementary school, middle school/junior high school, and high school. Elementary is usually kindergarten and grades 1-5 or 6, middle school is grades 6-8 or just 7 and 8 (in which case it may be called junior high instead) and high school is grades 9-12. So then after 12th grade, you graduate and then you can go on to university.
Elanor roosevelt high school
'la terminale' is the name of the last year in high school in France. An US student in the same position would say he is 'a grade 12 student / a 12th grade student'
What grades are in middle school depends upon the school district. It is the 2 or 3 grades between elementary school and high school. It includes 7th & 8th grades, but might also have either the 6th or 9th grades. The school district where I grew up had junior high schools with 7th, 8th and 9th grades. They still do, but have changed to calling them "middle school". Where my children grew up, middle school was, and still is, 7th and 8th grades.