Compose and decompose fractions flexibly with models and symbols
Fraction Shape Sets
Description In this task, students will work with a discrete (set) model of shapes with various characteristics. Students will demonstrate their understanding of fractions of a set by using different attributes to compose or identify fractions. They will be using symbolic notation to record and discuss their thinking. 

Mathematics Students need to understand that defining the whole for a set is different than defining the whole when using an area model. In this task, the students may select different wholes since they are working with sets. For example, the whole could be 23 shapes total, so the fractional unit is twentythirds, or it could be the six triangles, making the fractional unit sixths. Understanding that the denominator of a fraction is the fractional unit is important. 

Curriculum Connections Students will:


Instructional sequence


Highlights of student thinking Students may:

Key questions


Materials

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