Task# Dividing by One-Half

Illustrative MathematicsVaries

This task requires students to recognize both 'number of groups unknown' (part (a)) and 'group size unknown' (part (d)) division problems in the context of a whole number divided by a unit fraction. It also addresses a common misconception that students have where they confuse dividing by 2 or multiplying by 1/2 with dividing by 1/2.