And they never worked outside in groups of more than two or three.

The Chinese usually worked in large groups of 30 - 100 men.

We had to work in groups for a number of projects.

A specific focus of the research is to study how children work together in groups with the computer.

They always work in groups and the period of time is for a month or more.

His classes now focus on students working in small groups.

She has her students work in small groups - usually three or four.

They will work in groups of 30 to 90, under guard.

But they usually work in small groups, or even alone.

He does not like working in groups and usually moves alone.