The present research aimed to make a comparative study on environmental knowledge and attitude of the secondary school students in 2nd grade of biology course in green and traditional schools. A pioneer nongovernmental green school for girls at Tehran Education Organization District 2 was chosen as a Case study green school statistical population, and using Cochran sample size formula, a sample size of 50 individuals was estimated for it. The intended traditional school, on the other hand, should be chosen to comply with the studied green school in terms of sex variables, field of study, regional and economic conditions, and the mean educational level of students. Therefore, after close investigations, proper traditional schools were selected, and a sample size of 42 individuals was obtained for it by using Cochran formula.
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机译：BUZZ-YO-CHILD是一种袋装标签设备，其发明目的是在上学期间协助学生和家长。本发明将有助于使交通平稳地流过停靠降落区。大多数学校目前在放学期间面临许多问题，包括交通拥堵，学生坐在阳光下以及猜测父母何时开车经过。 Buzz Yo Child将在学校Wi-Fi系统上运行，并且家长将具有Buzz-Yo-Child应用程序，以将蜂鸣器警报发送到行李牌，以警告学生其父母在排队等候接送。
