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Assessing Understanding of Fraction Ordering

Author:
Judah L Schwartz
Clicking on the new problem button displays three fractions (rational numbers) in the {Denominator, Numerator} plane. Which is the largest fraction? the smallest fraction? How are the positions of the three dots (blue, yellow, green) in the left-hand panel related to the magnitude of the fractions on the number line in the right-hand plane? What other questions [could,would] you ask?

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