circumscribe. 1  to draw a line around; encircle: to circumscribe a city on a map. 2  to enclose within bounds; limit or confine, especially narrowly: Her social activities are circumscribed by school regulations. 3  to mark off; define; delimit: to circumscribe the area of a science.
Passionate about all things Australian. Middle school and High school ages depend entirely on individual school and when they set their Middle School. They vary from anywhere in years 6-9 (ages 10 - 15) for Middle school to Years 9-12 for High school (ages 14 - 18).
If pupils follow the average pattern of school attendance, pupils will be in year 12 between the ages of 16 and 17, and year 13 between 17 and 18, however many schools still refer to them as the lower sixth and upper sixth or AS and A2.