Which subjects or areas do these apps and websites cover?
这些应用程序和网站涵盖哪些主题或领域？
The featured educational apps and websites cover a wide range of subjects, including math, science, language arts, social studies, coding, and more. They offer comprehensive resources to support middle school students learning across various academic disciplines.
这些特色教育应用程序和网站涵盖了广泛的学科，包括数学、科学、语言艺术、社会研究、编码等。 他们提供全面的资源来支持中学生跨学科的学习。