This 5-day project-based math resource applies math concepts in a real-world scenario to teach students about **adding and subtracting fractions with like denominators** In this** 5-day unit**, students will use their knowledge of adding and subtracting fractions to host a pie-eating contest. This math project is engaging and authentic. Plus, it’s available as both a digital and print resource.

This project-based math resource is **aligned with the following 4th Grade Math Common Core State Standards:**

Build fractions from unit fractions.

- CCSS.MATH.CONTENT.4.NF.B.3

Understand a fraction*a*/*b*with*a*> 1 as a sum of fractions 1/*b*. - CCSS.MATH.CONTENT.4.NF.B.3.A

Understand addition and subtraction of fractions as joining and separating parts referring to the same whole. - CCSS.MATH.CONTENT.4.NF.B.3.B

Decompose a fraction into a sum of fractions with the same denominator in more than one way, recording each decomposition by an equation. Justify decompositions, e.g., by using a visual fraction model.*Examples: 3/8 = 1/8 + 1/8 + 1/8 ; 3/8 = 1/8 + 2/8 ; 2 1/8 = 1 + 1 + 1/8 = 8/8 + 8/8 + 1/8*. - CCSS.MATH.CONTENT.4.NF.B.3.C

Add and subtract mixed numbers with like denominators, e.g., by replacing each mixed number with an equivalent fraction, and/or by using properties of operations and the relationship between addition and subtraction. - CCSS.MATH.CONTENT.4.NF.B.3.D

Solve word problems involving addition and subtraction of fractions referring to the same whole and having like denominators, e.g., by using visual fraction models and equations to represent the problem.

**This resource is available in both Printable & Digital Google Slides versions.**

**What’s included in this resource:**

**Background Knowledge:**Using a circle map, students will build background knowledge around running a pie-eating contest.**Fraction Concepts:**Students will review fraction concepts and models.**Joining Fractions:**Using the included instructional pages, students will learn about joining fractions that refer to the same whole.**Set Rules:**Students will set rules for their pie-eating contest.**Decompose Fractions:**Using the included instructional pages, students will learn how to decompose fractions into a sum of unit fractions.**Choose Flavors:**Students will choose pie flavors for their contest and enlist contestants.**Slice Pies:**Using the learned concepts, students will slice each pie into equal parts and write sums to show the different ways the fraction could be decomposed.**Add and Subtract Fractions:**Using the included instructional pages, students will learn how to add and subtract fractions with like denominators.**Estimate Pie Needed:**Using the learned concepts, students will survey their contestants to estimate how much pie will be needed in all.**Mixed Numbers:**Using the included instructional pages, students will learn how to convert between improper fractions and mixed numbers.**Make Pies:**Using the learned concepts, students will make an appropriate number of pies for the contest.**Adding and Subtracting Mixed Numbers:**Using the included instructional pages, students will learn how to add and subtract mixed numbers.**Contest Time:**Using the learned concepts, students will run their pie-eating contest and determine a winner.**Leftover Pie:**Using the learned concepts, students will subtract to determine how much pie is leftover.**Wrap Up:**Students will write complete a wrap up activity to review fraction concepts.

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