standard_description: Apply and extend previous understandings of division to divide unit fractions by whole numbers and whole numbers by unit fractions. (Students able to multiply fractions in general can develop strategies to divide fractions in general, by reasoning about the relationship between multiplication and division. But division of a fraction by a fraction is not a requirement at this grade.)
problem_activity: Task
Julius has 4 blue marbles.  If one third of Julius' marbles are blue,
how many marbles does Julius have?  Draw a diagram and explain.


aligns: yes