Use models to compose and decompose fractions with like denominators as a form of adding and substracting fractions
Flags
Description Students use their spatial reasoning and creative thinking to design a flag given a variety of precut and coloured shapes. Students investigate and determine what fraction of the whole flag the coloured shapes represent. 

Mathematics The flag task helps students understand that a whole can be decomposed in many ways. For example, by overlaying 2 oneeighth shapes onto a onefourth shape, the concept of decomposing or equivalence is made concrete. This lays the foundation for addition, and can also encourage students to find a common unit. Finding a common unit enables simple addition. 

Curriculum Connections Students will:


Instructional sequence


Highlights of student thinking Students may:

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Materials
