The prosecution said the children led active lives, taking part in PE classes and activities including music, drama and dance, without any difficulties.
Ms Cush said the council had increased both the range of activities and the number of classesin leisure centres in order to appeal to a much broader range of children.
The 100 pupils from 10 schools took part inactivities including drumming workshops, art classes, and multi-media classes so they could learn how to put up their own websites.
Where there are sex-segregated classes or athletic activities, including intramural and interscholastic athletics, all students must be allowed to participate in a manner consistent with their gender identity.