MADISON COUNTY PUBLIC SCHOOLS District Curriculum Map for Mathematics: Grade 5 Unit 6 Unit Description Unit 6 Operations with Fractions Suggested Length: 6 weeks Big Idea(s) Enduring Understanding(s) Develop fluency with fraction operations of addition & subtraction Develop understanding of fraction multiplication & division What enduring understandin gs are essential for application to new situations within or beyond this content? Enduring Skills Rubric measures competency of the following skills: Essential Question(s) What Solves word problems involving addition and subtraction of fractions, using equivalent fractions in cases of unlike denominators by using visual fractions or equations Recognizes reasonableness of answer using benchmark fractions Uses equivalent fractions to add/subtract fractions and/or mixed numbers with unlike denominators Constructs and communicates a well-organized and complete written response using a logical progression of steps. Makes a line plot to display a data set of measurements in fractions of a unit with denominators limited to 2, 4, and 8, and uses operations on fractions to solve problems involving information on line plots Solves word problems involving division of whole numbers leading to answers in the form of fractions or mixed numbers AND interprets the fraction as division of the numerator by the denominator AND identifies a simple model representing the situation. Solves real world problems by multiplying a mixed number by a fraction, a fraction by a fraction, and a whole number by a fraction and interprets the product by using given context Solves real world problems by dividing a fraction by a whole number and a whole number by a fraction using visual fraction models and interpreting the quotient by using given context Multiplies a mixed number by a fraction, a fraction by a fraction, and a whole number by a fraction and interprets the product Divides a fraction by a whole number and a whole number by a fraction using visual fraction models and interpreting the quotient Assesses reasonableness of a product of two fraction factors without performing the multiplication with either factor being greater or less than one How can I solve real-world problems that involve addition and subtraction of fractions? How does multiplying fractions relate to real world problems? 1 MADISON COUNTY PUBLIC SCHOOLS District Curriculum Map for Mathematics: Grade 5 Unit 6 questions will provoke and sustain student engagement while focusing learning? How do I show multiplication of fractions using a visual model? How does dividing fractions relate to real world problems? How do I show division of fractions using a visual model? Standards Standards for Mathematical Practice 1. Make sense of problems and persevere in solving them. Students 2. 3. 4. 5. 6. 7. 8. make sense of the meaning of addition, subtraction, multiplication and division of fractions with whole- number multiplication and division. Reason abstractly and quantitatively. Students demonstrate abstract reasoning to create and display area models of multiplication and both sharing and measuring models for division. They extend this understanding from whole numbers to their work with fractions. Construct viable arguments and critique the reasoning of others. Students construct and critique arguments regarding their understanding of fractions greater than, equal to, and less than one whole and one half. Students recognize reasonable answers when performing operations with fractions. Model with mathematics. Students draw representations of their mathematical thinking as well as use words and numbers to explain their thinking Use appropriate tools strategically. Students select and use tools such as visual models, measuring sticks/line plots, and manipulatives of different fraction sizes to represent situations involving the relationship between fractions. Attend to precision. Students attend to the precision when performing operations with fractions. Students use appropriate terminology when referring to fractions. Look for and make use of structure. Students develop the concept of all operations with fractions with fractions including drawing visual representations and working with like and unlike denominators through the use of various manipulatives Look for and express regularity in repeated reasoning. Students relate new experiences to experiences with similar contexts when allowing students to develop relationships for fluency and understanding of fractional computation. Students explore operations with fractions with visual models and begin to formulate 2 MADISON COUNTY PUBLIC SCHOOLS District Curriculum Map for Mathematics: Grade 5 Unit 6 generalizations. Standards for Mathematical Content 5.NF.1 Add and subtract fractions with unlike denominators (including mixed numbers) by replacing given fractions with equivalent fractions in such a way as to produce an equivalent sum or difference of fractions with like denominators. For example, 2/3 + 5/4 = 8/12 + 15/12 = 23/12. (In general, a/b + c/d = (ad + bc)/bd.) 5.NF.2 Solve word problems involving addition and subtraction of fractions referring to the same whole, including cases of unlike denominators, e.g., by using visual fraction models or equations to represent the problem. Use benchmark fractions and number sense of fractions to estimate mentally and assess the reasonableness of answers. For example, recognize an incorrect result 2/5 + 1/2 = 3/7, by observing that 3/7 < 1/2. 5.NF.3 Interpret a fraction as division of the numerator by the denominator (a/b = a ÷ b). Solve word problems involving division of whole numbers leading to answers in the form of fractions or mixed numbers, e.g., by using visual fraction models or equations to represent the problem. For example, interpret 3/4 as the result of dividing 3 by 4, noting that 3/4 multiplied by 4 equals 3, and that when 3 wholes are shared equally among 4 people each person has a share of size 3/4. If 9 people want to share a 50-pound sack of rice equally by weight, how many pounds of rice should each person get? Between what two whole numbers does your answer lie? 5.NF.4 Apply and extend previous understandings of multiplication to multiply a fraction or whole number by a fraction. a. Interpret the product (a/b) × q as a parts of a partition of q into b equal parts; equivalently, as the result of a sequence of operations a × q ÷ b. For example, use a visual fraction model to show (2/3) × 4 = 8/3, and create a story context for this equation. Do the same with (2/3) × (4/5) = 8/15. (In general, (a/b) × (c/d) = ac/bd.) b. Find the area of a rectangle with fractional side lengths by tiling it with unit squares of the appropriate unit fraction side 3 MADISON COUNTY PUBLIC SCHOOLS District Curriculum Map for Mathematics: Grade 5 Unit 6 lengths, and show that the area is the same as would be found by multiplying the side lengths. Multiply fractional side lengths to find areas of rectangles, and represent fraction products as rectangular areas. 5.NF.5 Interpret multiplication as scaling (resizing), by: a. Comparing the size of a product to the size of one factor on the basis of the size of the other factor, without performing the indicated multiplication. b. Explaining why multiplying a given number by a fraction greater than 1 results in a product greater than the given number (recognizing multiplication by whole numbers greater than 1 as a familiar case); explaining why multiplying a given number by a fraction less than 1 results in a product smaller than the given number; and relating the principle of fraction equivalence a/b = (n×a)/(n×b) to the effect of multiplying a/b by 1. 5.NF.6 Solve real world problems involving multiplication of fractions and mixed numbers, e.g., by using visual fraction models or equations to represent the problem. 5.NF.7 Apply and extend previous understandings of division to divide unit fractions by whole numbers and whole numbers by unit fractions. (Note: Students able to multiply fractions in general can develop strategies to divide fractions in general, by reasoning about the relationship between multiplication and division. But division of a fraction by a fraction is not a requirement at this grade.) a. Interpret division of a unit fraction by a non-zero whole number, and compute such quotients. For example, create a story context for (1/3) ÷ 4, and use a visual fraction model to show the quotient. Use the relationship between multiplication and division to explain that (1/3) ÷ 4 = 1/12 because (1/12) × 4 = 1/3. b. Interpret division of a whole number by a unit fraction, and compute such quotients. For example, create a story context for 4 ÷ (1/5), and use a visual fraction model to show the quotient. Use the relationship between multiplication and division to explain that 4 ÷ (1/5) = 20 because 20 × (1/5) = 4. c. Solve real world problems involving division of unit fractions by 4 MADISON COUNTY PUBLIC SCHOOLS District Curriculum Map for Mathematics: Grade 5 Unit 6 non-zero whole numbers and division of whole numbers by unit fractions, e.g., by using visual fraction models and equations to represent the problem. For example, how much chocolate will each person get if 3 people share 1/2 lb of chocolate equally? How many 1/3-cup servings are in 2 cups of raisins? Supporting 5.MD.1 Convert among different sized standard measurement units Standard(s) within a given measurement system (e.g., convert 5 cm to 0.05 m), Which related and use the conversion to solve multi-step real world problems. standards will be incorporated to support and enhance the enduring standards? Instruction al Outcomes What must students learn and be able to by the end of the unit to demonstrate mastery? Vocabular y What vocabulary must students know to understand 5.MD.2 Make a line plot to display a data set of measurements in fractions of a unit (1/2, ¼, 1/8). Use operations on fractions for this grade to solve problems involving information presented in line plots. I am learning to… Calculate equivalent fractions in order to add or subtract fractions and mixed numbers Interpret the product of a multiplication problem based on the size of the factors Explain the inverse relationship between multiplication and division I can explain how fractions are related to division by using models and/or equations I can solve word problems that include division of whole numbers and explain the quotient as it relates to whole numbers, mixed numbers, or fractions Model the multiplication of fractions b ab when multiplying fractions c c Explain why a Model the division of whole numbers and fractions Solve real world problems that require operations of fractions Use benchmark fractions to determine reasonability of an answer Essential Vocabulary Area model Array Denominator Dividend Divisor Equal parts 5 MADISON COUNTY PUBLIC SCHOOLS District Curriculum Map for Mathematics: Grade 5 Unit 6 and communicat e effectively about this content? Resources & Activities What resources could we use to best teach this unit? Equivalent fraction Factor Fraction Improper fraction Like/common denominator Mixed number Numerator Of Product Quotient Skip count Unit fraction Supporting Vocabulary Associative property Distributive property half Inverse relationship Remainder Whole Stepping Stones (www.origoeducation.com) 5.NF.1 o Module 2: Lessons 1-5 o Module 4: Lessons 1-7 o Module 6: Lessons 2-7 5.NF.2 o Module 4: Lesson 8 o Module 6: Lesson 8 o Module 9: Lesson 9 5.NF.3 o Module 11: Lessons 1-2 o Module 9: Lessons 1-8 5.NF.4 5.NF.5 o Module 9: Lesson 4,6,7 o Module 9: Lessons 8-9 o Module 11: Lessons 3-8 5.NF.6 5.NF.7 6 MADISON COUNTY PUBLIC SCHOOLS District Curriculum Map for Mathematics: Grade 5 Unit 6 Engage NY (https://www.engageny.org/resource/grade-5-mathematics) 5.NF.1 o Module 3: Topics A, B, C, D 5.NF.2 o Module 3: Topics B, C, D 5.NF.3 o Module 4: Topic B 5.NF.4 o Module 4:Topics C, D, E o Module 5: Topic C 5.NF.5 o Module 4: Topic F 5.NF.6 o Module 4: Topics D, E, F o Module 5: Topic C 5.NF.7 o Module 4: Topic G Howard County Website (https://grade5commoncoremath.wikispaces.hcpss.org/home) K-5 Math Teaching Resources 5.NF.1 o http://www.k-5mathteachingresources.com/support-files/creatingequivalent-fractions-to-add-unlike-fractions1.pdf o http://www.k-5mathteachingresources.com/support-files/creatingequivalent-fractions-to-subtract-unlike-fractions.pdf o http://www.k-5mathteachingresources.com/support-files/fractionword-problems-unlike-denominator.pdf o http://www.k-5mathteachingresources.com/support-files/addingmixed-numbers-with-unlike-denominators.pdf o http://www.k-5mathteachingresources.com/supportfiles/subtracting-mixed-numbers-with-unlike-denominators.pdf o http://www.k-5mathteachingresources.com/supportfiles/magicsquaresadditionfractions.pdf o http://www.k-5mathteachingresources.com/support-files/closestto-25.pdf o http://www.k-5mathteachingresources.com/support-files/the-sumof-two-mixed-numbers.pdf o http://www.k-5mathteachingresources.com/support-files/thedifference-between-2-mixed-numbers.pdf 7 MADISON COUNTY PUBLIC SCHOOLS District Curriculum Map for Mathematics: Grade 5 Unit 6 o o http://www.k-5mathteachingresources.com/support-files/thewishing-club-1.pdf http://www.k-5mathteachingresources.com/support-files/thewishing-club-2.pdf 5.NF.2 o http://www.k-5mathteachingresources.com/supportfiles/fractionwordproblem1.pdf o http://www.k-5mathteachingresources.com/supportfiles/fractionwordproblem2.pdf 5.NF.3 o http://www.k-5mathteachingresources.com/support-files/relatingfractions-to-division.pdf 5.NF.4 o http://www.k-5mathteachingresources.com/supportfiles/multiplying-fractions-by-dividing-rectangles.pdf o http://www.k-5mathteachingresources.com/support-files/fractionx-fraction-word-problems.pdf o http://www.k-5mathteachingresources.com/support-files/areaword-problems-fractional-side-lengths-5nf4b.pdf 5.NF.5 o http://www.k-5mathteachingresources.com/supportfiles/multiplication-and-scale-problems.pdf 5.NF.6 o http://www.k-5mathteachingresources.com/support-files/fractionx-mixed-no.-word-problems-5nf6.pdf o http://www.k-5mathteachingresources.com/support-files/wholenumber-x-mixed-number-models.pdf o http://www.k-5mathteachingresources.com/support-files/mixednumber-x-fraction-models.pdf 5.NF.7 o http://www.k-5mathteachingresources.com/support-files/divide-aunit-fraction-by-a-whole-number.pdf o http://www.k-5mathteachingresources.com/support-files/dividinga-whole-number-by-a-unit-fraction-ver.2.pdf o http://www.k-5mathteachingresources.com/support-files/divide-awhole-number-by-a-unit-fraction.pdf o http://www.k-5mathteachingresources.com/supportfiles/divisionoffractionwordproblems.pdf Created by Beth Richardson (Elizabeth.richardson@madison.kyschools.us): 8 MADISON COUNTY PUBLIC SCHOOLS District Curriculum Map for Mathematics: Grade 5 Unit 6 Fraction of the Day http://www.commoncoresheets.com/Fractions.php Making Math Magic http://www.makingmathmagic.net/kcm.html Teachers Pay Teachers Dividing Fractions Task Cards (TPT $2.75): https://www.teacherspayteachers.com/Product/Dividing-Fractions-TaskCards-Divide-with-Visual-Models-660430 Multiplying Fractions Task Cards (TPT $2.50): https://www.teacherspayteachers.com/Product/Multiplying-FractionsTask-Cards-Multiply-with-Visual-Models--623369 Adding and Subtracting Fractions Task Cards (TPT $2.50): https://www.teacherspayteachers.com/Product/Adding-SubtractingFractions-Task-Cards-Add-Subtract-UNLIKE-denominators--594267 Common Core Assessment Pack-Common Core Grade 5 (TPT $12.50): https://www.teacherspayteachers.com/Product/Common-CoreAssessment-Pack-Math-Grade-5-411127 Illustrative Mathematics o https://www.illustrativemathematics.org/content-standards/5 Illuminations o http://illuminations.nctm.org/Search.aspx?view=search&cc=2014_2 024 Remember there are other sources in your school that may not be listed on this common resources list due to variation in each individual school. Examples of other great resources your school may have access to include: Everyday Math Games, Investigations, Everyday Partner Games, AVMR file folders, Ongoing Assessment Project, etc. 9