Present participle: "working in groups" Using the present participle, describe the activities of children in school to make the sentence more dynamic.
Passive voice: "chosen by the teacher" Using the passive voice, emphasize that the allocation of groups is not chosen by the children themselves, adding complexity to the sentence.
Conditional clause: "that they either don’t like, or wouldn’t choose to work with under normal circumstances" This conditional clause provides additional information to the main sentence, explaining the challenges children may face, enhancing the logic and depth of the sentence.