# ALEX Learning Activity

## Fraction Equivalence: Let's Go Shopping

A Learning Activity is a strategy a teacher chooses to actively engage students in learning a concept or skill using a digital tool/resource.

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This learning activity provided by:
 Author: Samantha Wallace System: Limestone County School: Cedar Hill Elementary School
General Activity Information
 Activity ID: 2576 Title: Fraction Equivalence: Let's Go Shopping Digital Tool/Resource: Shopping Cart sheet Web Address – URL: https://docs.google.com/document/d/1Gd5edr9f8KVmPZdptAKdeEnMuziLlakddh14PQs4dfM/edit?usp=sharing Overview: Students will go on a “shopping trip” to buy items with prices written both as decimals and fractions with 10 or 100 as the denominator.  After they have decided which five items to “buy,” they will calculate the total cost of their items by adding fractions with 10 and 100 as the denominator.  The students will use a visual model to represent the equivalence between fractions with different denominators. This activity results from the ALEX Resource Development Summit.
Associated Standards and Objectives
Content Standard(s):
 Mathematics MA2019 (2019) Grade: 4 17. Express, model, and explain the equivalence between fractions with denominators of 10 and 100. a. Use fraction equivalency to add two fractions with denominators of 10 and 100. Unpacked Content Evidence Of Student Attainment:Students: Express a fraction with denominator 10 as an equivalent fraction with denominator 100 and use this technique to find the sum of two fractions with respective denominators 10 and 100.Teacher Vocabulary:Equivalence Denominator Fraction model Tenths Hundredths SumKnowledge:Students know: Strategies for generating equivalent fractions. Strategies for adding fractions with like denominators.Skills:Students are able to: Express a fraction with a denominator of 10 as an equivalent fraction with a denominator of 100. Use models to illustrate equivalency between fractions with denominators of 10 and 100. Explain equivalency between fractions with denominators of 10 and 100. Use equivalency to add two fractions with denominators of 10 and 100.Understanding:Students understand that: equivalent fractions are fractions that represent equal value.Diverse Learning Needs: Essential Skills:Learning Objectives: M.4.17.1: Recognize equivalent forms of fractions and decimals. M.4.17.2: Demonstrate equivalent fractions using concrete objects or pictorial representation. M.4.17.3: Recognize pictorial representations of equivalent fractions and decimals in tenths and hundredths. M.4.17.4: Define equivalency. M.4.17.5: Identify place value of decimals to the tenths and hundredths. M.4.17.6: Use place value understanding to round whole numbers to the nearest 10 or 100. Prior Knowledge Skills:Define equivalent. Recognize pictorial representations of equivalent fractions. Recognize different interpretations of fractions, including parts of a set or a collection, points on a number line, numbers that lie between two consecutive whole numbers, and lengths of segments on a ruler. Recognize that equal shares of identical wholes need not have the same shape. Compose two-dimensional shapes (rectangles, squares, trapezoids, triangles, half-circles, and quarter-circles) or three-dimensional shapes (cubes, right rectangular prisms, right circular cones, and right circular cylinders) to create a composite shape, and compose new shapes from the composite shape. Label a fraction with multiple representations. Partition circles and rectangles into two and four equal shares; and describe the shares using the words halves, fourths, and quarters; and use the phrases half of, fourth of, and quarter of. Recognize different interpretations of fractions, including parts of a set or a collection, points on a number line, numbers that lie between two consecutive whole numbers, and lengths of segments on a ruler. Label a pictorial representation. Alabama Alternate Achievement Standards AAS Standard: M.AAS.4.17 Model equivalence between fractions of a whole, halves and fourths using visual models.
Learning Objectives:

Students will be able to add fractions with denominators of 10 and 100 using models or by making equivalent fractions.

Strategies, Preparations and Variations