Read the Headline Story to the students. Encourage them to make a table of possible solutions and focus their responses on fractions of the total number of cookies.
Headline Story
Some students shared a box of 18 cookies equally.
Possible student responses
If 2 students shared, then each got of the box, or 9 cookies.
If 3 students shared, then each got of the box, or 6 cookies.
If each student got of the box, then 6 students shared, and each received 3 cookies.
If 8 students shared the box, then each got of the box, 2 cookies.