Interestingly, in the upper grades, teachers typically teach just two periods a day (typically 45 minutes in length) out of eight or nine periods.

有趣的是，在高年级，每天有八到九节课，而每位老通常每天只上两节课（每节课一般十五分钟）。

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Students of high school education teach students in the secondary grades. which may include grades seven through twelve. depending on the school system or state regulations.

高中阶段教育专业旨在根据学校系统或国家规定，教导在中等年级，其中可能包括七年级至十二年级这些学生。

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This program that teaches individuals to teach students in the middle. intermediate or junior high grades. which may include grades four through nine by regulation.

中学教育专业主要培养能够教导中学生、高中生课程的教师。通常是从四年级到九年级。

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