I would write the task in slightly different ways. In individual learning, I
would say, ‘Write down your thoughts on this and submit it to your teacher as an
email.’ If I wrote it as a cooperative assignment, I would say something like
this, ‘Discuss this with a colleague or a peer student. Using this discussion as
a background, you should submit your assignment as an email to your teacher.’ If
I should write it as the third alternative, collaborative learning, I would say
something like this, ‘Contact a peer student and write the assignment together,
and submit it as something you have written together to your teacher in an
email.’