classroom

教室

The students hurried back to the classroom when the bell rang.

钟声一响，学生们赶忙回到教室。

课堂

These teaching methods really work in the classroom.

这些教学方法在课堂上确实有效。

课堂的、教学上的限定词前

New teachers often struggle with classroom management at first.

新老师起初常常在课堂管理上感到吃力。