The school implemented nongraded instruction to focus more on individual student's learning progress rather than just age.
这所学校实施了不分年级教学，以更多地关注学生的个体学习进度，而不仅仅是年龄。
Nongraded instruction allows students to move at their own pace, which is beneficial for those who need more time to understand complex concepts.
不分年级教学允许学生按照自己的节奏学习，这对那些需要更多时间理解复杂概念的学生是有益的。