That's four years of different ages, all with different averages and growth rates, so it is too hard to answer, but on average seniors and juniors are almost to pretty much done growing so that would put them at average height 5'9-5'10, in freshmen to sopohmore is a major jump growth period as is 8th and 7th grade, but the average for that time is 5'5 to 5'8 .
On average about 6'0-6'2.
6'2 or 6'3
The motto of Wynberg Boys' High School is 'Supera Moras'.
The motto of Westcliff High School for Boys is 'By Faith and Fortitude'.
The motto of Canterbury Boys' High School is 'Truth and Honour'.
On average about 6'0-6'2.
The average jumping height is 10 feet.(In America)
about 5'4"-5'5"
The average school chair height ranges from 16-18 inches for elementary school students and 18-19 inches for high school students and adults.
The average height of a flag pole is around 58.48089416'
Southland Boys' High School's motto is 'Not for school but for life we are learning'.
Southend High School for Boys was created in 1895.
Epping Boys High School was created in 1957.
Chichester High School For Boys was created in 1971.
Jeppe High School for Boys was created in 1890.
Siddheswari Boys' High School was created in 1933.
Baldwin Boys High School was created in 1880.