When lectures are the principal method of instruction in larger classes, regular periods may be set aside for small group discussions under the leadership of an assistant instructor.

较大的班以讲课为主要教学方法时，也会拨出一定时间由助教领导进行小组讨论。

youdao

When lectures are the principal method of instruction in larger classes, regular periods may be set aside for small group discussions under the leadership of an assistant instructor.

人数较多的班以讲课为主要教学方法，但也会定期安排时间由助教负责进行小组讨论。

youdao

Larger classes, particularly those held in lecture halls, unfortunately, allow much less flexibility.

上大课，尤其是那种设在演讲礼堂里的大课，很不幸，更缺乏教学弹性。

youdao

Larger classes can mean less supervision.

VOA: special.2009.08.06

the classes tend to be larger,

所以课堂上总是有很多人，

成功的医学研究 - SpeakingMax英语口语达人

The study points out that primary school teachers in England have to deal with larger classes, and that the workload in Scotland has dropped by 10% in the decade between 2000 and 2010.

BBC: Call for Scottish teachers to have more holidays

In short, schools with larger graduating classes were (not surprisingly) seen as creating more partners in Big Law.

FORBES: Misleading Study of 'Big Law' Partners Criticized

Teachers and students are both more effective in 10 or 15 student classes than in classes much larger.

FORBES: Why Fixing America's Schools Means Increasing Teacher Productivity