Big Ideas Standards SMP Resources indicate Power Standards. Essential Questions Bolded standards Big Idea 2 My Math- Chapter 9 5.NF.1 ADD and SUBTRACT fractions with unlike You can use common denominators (including mixed numbers) by Envision: Topic 10, ALL denominators to add or subtract REPLACING given fractions with equivalent fractions in fractions with unlike such a way as to produce an equivalent sum or difference denominators. of fractions with like denominators. For example, 2/3 + 5/4 = 8/12 + 15/12 = 23/12. (In general, a/b + c/d = (ad + 4 Essential Question bc)/bd.) How do you add or subtract fractions with unlike denominators? Big Idea 7 You can tell the validity of an 5.NF.2 Solve word problems involving addition and My Math Chapter 9 answer by using benchmark subtraction of fractions referring to the same whole, – fractions and number sense. including cases of unlike denominators, e.g., by using Envision: Topic 11 Lesson 1 visual fraction models or equations to represent the Essential Question problem. Use benchmark fractions and number sense of (Focus on word problems) How do you know when your fractions to estimate mentally and assess the answer is reasonable when reasonableness of answers. For example, recognize an multiplying fractions? incorrect result 2/5 + 1/2 = 3/7, by observing that 3/7 < 1/2.
Big Ideas Essential Questions Standards Bolded standards indicate Power Standards. SMP Resources Big Idea You can use common denominators to add or subtract fractions with unlike denominators. Essential Question How do you add or subtract fractions with unlike denominators? Big Idea You can tell the validity of an answer by using benchmark fractions and number sense. Essential Question How do you know when your answer is reasonable when multiplying fractions? 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. 2 4 7 My Math- Chapter 9 Envision: Topic 10, ALL My Math – Chapter 9 Envision: Topic 11 Lesson 1 (Focus on word problems)