No! Students do not need a TeacherMade account to access their assignments at this time. 

Only Teachers should be creating TeacherMade accounts. Students receive access via links created when Teachers assign students an activity.

Please note that in TeacherMade, the term "Assigning" = students, and "Sharing" = other Teachers. 

Don't share worksheets with your students, make assignments to them :) 

For more information, click this article: How Do I Add Students?