该网站的资料面向幼儿园至十二年级（的教学）， 涵盖的科目有数学，科学，技术，阅读，语言艺术及各类语言。
The materials are for kindergarten through grade twelve. The subject areas are mathematics, science, technology, reading, language arts and languages.
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。
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.
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