Fractions are a foundational piece for tackling mathematics at all levels of schooling. Students need to understand how two numbers interact with each other as numerators and denominators, as ratios, ...

A unit fraction is any fraction where the numerator is 1, for example \(\frac{1}{4}\). A non-unit fraction is a fraction where the numerator is not 1, for example \(\frac{4}{5}\). Mixed fractions are ...

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This report details the development of a learning progression for the understanding of fractions. The intended use of the learning progression is to support formative assessment practices for children ...

Many children never master fractions. When asked whether 12/13 + 7/8 was closest to 1, 2, 19, or 21, only 24% of a nationally representative sample of more than 20,000 US 8th graders answered ...