21503—according to the arrangement,i will divide our class into 3 or 4 groups for discussion.3781

21503—according to the arrangement,i will divide our class into 3 or 4 groups for discussion.3781
想问：
1—divide our class into 3 or 4 groups for discussion:怎么翻译?这个for discussion：是目的状语吗?
2—divide A into B：
divide into 1.分成; 分为
The river divides into two streams at this point.
这条河在此分成两条支流。
This is divided into two parts.
这被分成两部分。
divide A into B：把A分成B