. Grade 5, Illustrative icon

Painting a room

Illustrative MathematicsVaries

The purpose of this task is to provide students with a situation in which it is natural for them to divide a unit fraction by a non-zero whole number. Determining the amount of paint that Kulani needs for each wall illustrates an understanding of the meaning of dividing a unit fraction by a non-zero whole number. Students might first attempt to draw Kulani's room in order to solve this problem instead of drawing the strip diagram that is given in the solution below. It is important to motivate students to draw the a picture that represents the amount of paint because it is the of the gallon of paint that is being divided into 4 pieces rather than the entire room being divided by the amount of paint.

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