Mrs. Cohen was a science teacher at Degrassi Community School and head of the Science Olympics at one point. She was portrayed by Jane Sowerby.
In Come As You Are (2), Mrs. Cohen calls up the students to get the chemicals.
In Never Ever (1), she walks into class and trusts everyone already read their assignment, and tells them to partner up for their projects.Scream (1), she groups Adam and Becky together. When Becky asks to be in a different group, Mrs. Cohen tells her that even if they don't get along, they can still come up with a good presentation, and assigns global warming to them.