This task is from Tools for NC Teachers. Students determine how to equally share candy bars. This is remixable. 

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Mrs. Pate’s 20 students all got A’s on their math test, so she bought chocolate bars to give them as a reward the next day.  During the night, however, Mrs. Pate’s cat chewed up 5 of the bars.  She didn’t have time to go to the store to buy more bars. 

Mrs. Pate put her students into groups of 4.  She gave each group 3 chocolate bars and told them they had to find a way to share the 3 bars equally among 4 students. 

Draw a model to show how the students could have shared the bars.  How much of a chocolate bar will each student get?