West-Orange Cove ISD 6th Grade Mathematics – 2nd Six Weeks Learning Standards: Week 1 Oct 1 - 5 (6.1) Number, operation, and quantitative reasoning. The student represents and uses rational numbers in a variety of equivalent forms. The student is expected to: (D) write prime factorizations using exponents; (E) identify factors of a positive integer, common factors, and the greatest common factor of a set of positive integers; and Major Concepts Key Vocabulary: exponent, base, factor, power, composite number, prime number, prime factorization, common factor, greatest common factor (GCF) Math background for teachers: Exponential notation is a powerful way to express repeated products of the same number. Powers of 10 express very large numbers in an efficient manner. When you raise numbers to powers you multiply. A whole number exponent is repeated multiplication of a number of times itself. Prime factorization of a composite number is written as the product of prime numbers. Each composite number has only one prime factorization. A composite number is a whole number with more than 2 factors. 0 and 1 are neither prime nor composite. The greatest common factor (GCF) is the greatest factor shared by all the numbers. Do not let students confuse GCF with LCM. Processes: Mathematical Process Standards. The student uses mathematical processes to acquire and demonstrate mathematical understanding. The student is expected to: (A) apply mathematics to problems arising in everyday life, society, and the workplace; (B) use a problem-solving model that incorporates analyzing given information, formulating a plan or strategy, determining a solution, justifying the solution, and evaluating the problem-solving process and the reasonableness of the solution; (C) select tools, including real objects, manipulatives, paper/pencil, and technology as appropriate, and techniques, including mental math, estimation, and number sense as appropriate, to solve problems; (D) communicate mathematical ideas, reasoning, and their implications using multiple representations, including symbols, diagrams, graphs, and language as appropriate; (E) create and use representations to organize, record, and communicate mathematical ideas; (F) analyze mathematical relationships to connect and communicate mathematical ideas; and (G) display, explain, and justify mathematical ideas and arguments using precise mathematical language in written or oral communication. Exponents Prime Numbers Prime Factorization Greatest Common Factor Instruction Interventions Extensions Resources Prentice Hall Course 1 Textbook: Chapter 4 – Number Theory and 2012 - 2013 Fractions Students work in small group with the teacher using manipulatives to determine the GCF for sets of numbers. 4-2 Exponents – (1 day) Basic Multiplication Facts 4-3 Prime Numbers and Prime Factorization (1 day) A product Game 4-4 Greatest Common Factor (2 Days) Multiplication Grid Advanced/GT Students: Students will problem solve using exponential notation. Assessments Products/Projects Assessment - Quiz Product/Project Journal Entry Factor Trees – GCF http://www.funtrivia.com/playquiz/quiz2715661f1 7598.html http://nlvm.usu.edu/en/nav/frames_asid_202_g_3_ t_1.html http://www.ixl.com/math/grade-6/greatestcommon-factor-word-problems 6.11, 6.12. 6.13 are taught every day in all concepts Page 1 West-Orange Cove ISD 6th Grade Mathematics – 2nd Six Weeks 2012 - 2013 Write 3 x 3 x 3 x 3 using exponents Solution: 3 x 3 x 3 x 3 = 34 Write 8 x 8 x 8 x 8 x 8 x 8 x 8 using exponents. Solution: 8 x 8 x 8 x 8 x 8 x 8 x 8 = 8 7 The greatest common factor of two or more whole numbers is the largest whole number that divides evenly into each of the numbers. There are two ways to find the greatest common factor. The first method is to list all of the factors of each number, then list the common factors and choose the largest one. Find the GCF of 36 and 54. Example: The factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, and 36. The factors of 54 are 1, 2, 3, 6, 9, 18, 27, and 54. The common factors of 36 and 54 are 1, 2, 3, 6, 9, 18 Although the numbers in bold are all common factors of both 36 and 54, 18 is the greatest common factor. 6.11, 6.12. 6.13 are taught every day in all concepts Page 2 West-Orange Cove ISD 6th Grade Mathematics – 2nd Six Weeks 2012 - 2013 The second method to find the greatest common factor is to list the prime factors, then multiply the common prime factors. Let’s use the same numbers, 36 and 54 again to find their greatest common factor. Example: The prime factorization of 36 is 2x2x3x3 The prime factorization of 54 is 2x3x3x3 Notice that the prime factorizations of 36 and 54 both have one 2 and two 3s in common. So, we simply multiply these common prime factors to find the greatest common factor. Like this… 2 x 3 x 3 = 18 Both methods for finding the greatest common factor work! Basic Multiplication Facts: Students should already know basic multiplication facts; however, it is crucial to emphasize the memorization of these facts throughout the entire year 6.11, 6.12. 6.13 are taught every day in all concepts Page 3 West-Orange Cove ISD 6th Grade Mathematics – 2nd Six Weeks 2012 - 2013 Processes: Week 2 & 3 Oct 8 – 12 Oct 15 - 19 Learning Standards: 6.1B Generate equivalent forms of rational numbers including whole numbers, fractions, and decimals. Readiness Standard 6.2A Model addition and subtraction situations involving fractions with objects, pictures, words and numbers. Supporting Standard 6.2B Use addition and subtraction to solve problems involving fractions and decimals. Readiness Standard 6.2D Estimate and round to approximate reasonable results and to solve problems where exact answers are not required. Supporting Major Concepts Fractions o o o o o Equivalent fractions Simplifying fractions Improper fractions Mixed numbers Comparing and ordering fractions Least Common Multiple (LCM) Fractions and decimals Standard Instructional The next two weeks are focused on fractions and connecting fractions to decimals and the least common multiple (LCM). Key Vocabulary: fraction, denominator, numerator, simplify, simplest form, improper fraction, equivalent fraction, proper fraction, mixed number, multiple, common multiple, least common multiple (LCM), least common denominator (LCD), terminating decimal, repeating decimal Math background for the teacher: Three categories of models exist for working with fractions –o area, length, and set or quantity. Equivalent fractions are two ways of describing the same amount by using different-sized fractional parts. A fraction does not say anything about the size of the whole or the size of the parts. A fraction tells only about the relationship between the part and the whole. 6.11, 6.12. 6.13 are taught every day in all concepts Resources Prentice Hall Course 1 Textbook: Literature: The Man Who Counted: A Collection of Mathematical Adventures Chapter 4 – Number Theory and Fractions Lab 4-5a Modeling Fractions and 4-5 Equivalent Fractions (2 days) Lab 4-6a Improper Fractions (2 days) 4-6b Fraction Measurements (1 day) 4-7 Least Common Multiple (1 day) 4-8 Comparing and Ordering Fractions (1 day) 4-9 Fractions and decimals (2 days) Mathematical Process Standards. The student uses mathematical processes to acquire and demonstrate mathematical understanding. The student is expected to: (A) apply mathematics to problems arising in everyday life, society, and the workplace; (B) use a problem-solving model that incorporates analyzing given information, formulating a plan or strategy, determining a solution, justifying the solution, and evaluating the problem-solving process and the reasonableness of the solution; (C) select tools, including real objects, manipulatives, paper/pencil, and technology as appropriate, and techniques, including mental math, estimation, and number sense as appropriate, to solve problems; (D) communicate mathematical ideas, reasoning, and their implications using multiple representations, including symbols, diagrams, graphs, and language as appropriate; (E) create and use representations to organize, record, and communicate mathematical ideas; (F) analyze mathematical relationships to connect and communicate mathematical ideas; and (G) display, explain, and justify mathematical ideas and arguments using precise mathematical language in written or oral communication. Interventions Extensions Assessment Formal assessment The students will work with the teacher in small groups to explore fractions using manipulatives and multiplication strategies to find the LCM and LCLD. Advanced/GT Students: Students will convert between fractions, decimals, whole numbers, and percent. Students will practice problem solving and converting answers to decimals, fractions, and percents. Product/Project Students will write a letter to the editor explaining the concepts of LCM, LCD, and GCF. Fraction circles Fraction Sticks Pattern blocks Red/Yellow Counters Page 4 West-Orange Cove ISD 6th Grade Mathematics – 2nd Six Weeks Activity: Who is Winning? The students are playing red light-green light. Who is winning? The fractions tell how much of the distance they have already moved. Mary ¾, Harry ½, Larry 5/6, Juan 5/8, Miguel 5/9, Kim 2/3. Students will place the names on the number line to show where they are between the start and finish. Activity: Use the class (# of students for the whole) write fractions for boys/girls, wearing white, wearing blue, long hair, etc. Activity: Four students are sharing 10 brownies so that each one will get the same amount. How much can each child have? Activity: Use manipulatives to represent equivalent fractions. 12/5 and 2 2/5, 1/3 and 3/9, 1/3 and 6/18. Activity: Students will name a fraction that is close to 1. Next name another fraction that is even closer to l than the first. After they name the second fraction closer to l they must explain why they believe the fraction is closer to one than the previous fraction. Continue for several fractions in the same manner. Next do the same activity using ½ as the target. 2012 - 2013 http://express.smarttech.com/?url=htt p://exchangedownloads.smarttech.co m/public/content/9c/9ca457d5-a38e4bc2-8b9fa0afa75e70c6/%232%20FractionsPart 1.notebook# http://express.smarttech.com/?url=htt p://exchangedownloads.smarttech.co m/public/content/5d/5d0f2aab-2fff498c-889ca98bfad16b8f/Expressions%20and%2 0Variables.notebook# http://express.smarttech.com/?url=htt p://exchangedownloads.smarttech.co m/public/content/85/854f063e-6b7f42e2-a79a25139ec1268e/Fractions_Decimals_Pe rcents.notebook# Basic Multiplication Facts: Students should already know basic multiplication facts; however, it is crucial to emphasize the memorization of these facts throughout the entire year 6.11, 6.12. 6.13 are taught every day in all concepts Page 5 West-Orange Cove ISD Week 4 Oct 22 – 26 6th Grade Mathematics – 2nd Six Weeks Learning Standards: 6.1B Generate equivalent forms of rational numbers including whole numbers, fractions, and decimals. Readiness Standard 6.2A Model addition and subtraction situations involving fractions with objects, pictures, words and numbers. Supporting Standard 6.2B Use addition and subtraction to solve problems involving fractions and decimals. Readiness Standard 6.2D Estimate and round to approximate reasonable results and to solve problems where exact answers are not required. Supporting Standard 6.8 Select and use appropriate units to solve problems involving time. Supporting Standard Major Concepts Adding and subtracting fractions with like denominators Adding and subtracting fractions w/unlike denominators Instruction Resources Key Vocabulary: fraction, numerator, denominator, benchmark, mixed number, equation Prentice Hall Course 1 Textbook Math background for the teacher: The meanings of each operation on fractions are the same as the meanings for the operations on whole numbers In addition and subtraction of fractions, the numerator tells the number of parts and the denominator the type of part. It is the parts that are added or subtracted. Students should use invented strategies for solving addition and subtraction of fractions prior to teaching traditional algorithms. In order to add or subtract fractions you must have like or common denominators. Students may find using a number line a useful tool in solving addition and subtraction of fractions Students may solve equations using a number line without first finding a common denominator 6.11, 6.12. 6.13 are taught every day in all concepts 2012 - 2013 Processes: Mathematical Process Standards. The student uses mathematical processes to acquire and demonstrate mathematical understanding. The student is expected to: (A) apply mathematics to problems arising in everyday life, society, and the workplace; (B) use a problem-solving model that incorporates analyzing given information, formulating a plan or strategy, determining a solution, justifying the solution, and evaluating the problem-solving process and the reasonableness of the solution; (C) select tools, including real objects, manipulatives, paper/pencil, and technology as appropriate, and techniques, including mental math, estimation, and number sense as appropriate, to solve problems; (D) communicate mathematical ideas, reasoning, and their implications using multiple representations, including symbols, diagrams, graphs, and language as appropriate; (E) create and use representations to organize, record, and communicate mathematical ideas; (F) analyze mathematical relationships to connect and communicate mathematical ideas; and (G) display, explain, and justify mathematical ideas and arguments using precise mathematical language in written or oral communication. Interventions Extensions Literature: The Man Who Made Parks Chapter 5: Adding and Subtracting Fractions 5-l & 5-2 Estimating Sums and Differences with like denominators and 5-2a Lab (1 day) 5-3 Modeling Unlike Denominators (1 day) Students will work in a small group with the teacher using manipulative to add and subtract fractions that do not have a common denominator. Basic Multiplication Facts 5-4 – 5-5 Mixed Numbers (1 day) 5 – 6 and Solving fraction equations (1 day) Fraction Games http://www.ixl.com/math/grade-7/add-and-subtractfractions Advanced/GT Students: Students will problem solve using division to Assessment Assessments: Formal adding and subtracting fractions with common and unlike denominators Products/Project Students will write and reflect a journal entry on the process of adding and subtracting fractions with unlike denominators Page 6 West-Orange Cove ISD 6th Grade Mathematics – 2nd Six Weeks Activity: Students will solve then share their strategies (at this point you have not taught traditional algorithms). Mark bought 4 ¼ lb of candy for his mom. The candy looked so good that he ate 7/8 of a pound of it. How much did he give to his mom? 2012 - 2013 determine the unit rates and ratio. Students will use recipes and sales ads in problem solving. Jack and Jill ordered two medium pizzas, one cheese and one pepperoni. Jack ate 5/6 of a pizza and Jill at ½ of a pizza. How much pizza did they eat together? Basic Multiplication Facts: Students should already know basic multiplication facts; however, it is crucial to emphasize the memorization of these facts throughout the entire year 6.11, 6.12. 6.13 are taught every day in all concepts Page 7 West-Orange Cove ISD Week 5 Oct 29 – Nov 2 6th Grade Mathematics – 2nd Six Weeks Learning Standards: 6.1B Generate equivalent forms of rational numbers including whole numbers, fractions, and decimals. Readiness Standard 6.2D Estimate and round to approximate reasonable results and to solve problems where exact answers are not required. Supporting Standard 6.8 Select and use appropriate units to solve problems involving time. Supporting Standard Instruction . Key Vocabulary: fraction, numerator, denominator, benchmark, mixed number, equation Math background for teacher: For multiplication by a fraction, repeated addition and area models support development of the algorithm for multiplication of fractions. For division by a fraction, the two ways of thinking about the operation – partition and measurement will lead to two different though process for division and both are important. Students’ first experiences with multiplication should involve finding fractions of whole numbers. For example how much is 1/5 of 45? Or if the whole is 24 what is 3/8s of the whole? Developing the algorithms: o Common denominator algorithm – this relies on the measurement or repeated subtraction concept of division. First Major Concepts Multiplying and dividing fractions Resources Prentice Hall Course 1 Textbook 6-1 & 6-2 Multiplying Fractions 6-3 & 6-4 Dividing Fractions 6-5 Solving fraction Equations http://www.brainpop.com/ math/numbersandoperatio ns/multiplyinganddividing fractions/preview.weml 2012 - 2013 Processes: Mathematical Process Standards. The student uses mathematical processes to acquire and demonstrate mathematical understanding. The student is expected to: (A) apply mathematics to problems arising in everyday life, society, and the workplace; (B) use a problem-solving model that incorporates analyzing given information, formulating a plan or strategy, determining a solution, justifying the solution, and evaluating the problem-solving process and the reasonableness of the solution; (C) select tools, including real objects, manipulatives, paper/pencil, and technology as appropriate, and techniques, including mental math, estimation, and number sense as appropriate, to solve problems; (D) communicate mathematical ideas, reasoning, and their implications using multiple representations, including symbols, diagrams, graphs, and language as appropriate; (E) create and use representations to organize, record, and communicate mathematical ideas; (F) analyze mathematical relationships to connect and communicate mathematical ideas; and (G) display, explain, and justify mathematical ideas and arguments using precise mathematical language in written or oral communication. Interventions Extensions Students will work in small groups with the teacher using manipulatives and grid paper to develop algorithms for multiplying and dividing fractions. Basic Multiplication Facts Advanced/GT Students: Students will solve advanced equations using the order of operations. Students will problem solve and write equations to solve the problems. Assessment Assessments: formal understanding and ability to apply knowledge Products/project Students will illustrate solutions to the following: ¾x5½ 1 1/8 of 40 get common denominators and then divide numerators. Example, 5/3/ ¼ = 20/12 / 3/12 = 20 /3 = 30/3 = 6 2/3 o Invert and multiply algorithm – Invert the divisor and multiply. 6.11, 6.12. 6.13 are taught every day in all concepts Page 8 West-Orange Cove ISD 6th Grade Mathematics – 2nd Six Weeks 2012 - 2013 Students must understand the math behind this concept/strategy (multiply by the denominator and divide by the numerator) Activity: Students will illustrate the following fractions of whole numbers: There are 15 cars in Steven’s car collection. 2/3 of the cars are red. How many red cars does Steven have? The walk from school to the library takes 15 minutes. If we had already walked 2/3 of the way how many minutes had we walked? ¼x5=? 4x½=? 6.11, 6.12. 6.13 are taught every day in all concepts Page 9