The 6th Grade Math class used Excel to examine concrete graphical representations of the abstract concept of fractions that they were studying in class. Students made two worksheets: in the first sheet, they constructed a calculator that could add fractions (as long as the sum was less than one) and display the addends and the sum with pie charts. On the second sheet, the students made a slider that showed the difference between pairs of fractions which added up to 50/50. The students took one class to finish this lesson.
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