Brainstorming Allowed?

It states the following on the Survival Guide.
I thought brainstorming with others was not allowed?

# Brainstorm Project Ideas (10 mins)

Brainstorm one or two project ideas for the Create PT. Afterwards you’ll share ideas with a classmate for feedback.

This is from pg 15 of the student handout.

Collaborate with your partner(s) only during the ideation and development, including error testing, of your program code, if you choose to do so. NOTE: You are not allowed to collaborate on your video or individual written responses.