Chapter 9: Relate Fractions and Decimals
In Chapter 9 students will:
Vocabulary: fraction – a number that names part of a while or part of a group equivalent fractions - two or more fractions that name the same amount decimal – a number with one or more digits to the right of the decimal point decimal point – a symbol used to separate dollars from cents in a money amount; to separate the ones and the tenths place in a decimal equivalent decimals – two or more decimals that name the same amount compare - to describe whether numbers are equal to, less than, or grater than each other tenth - one of ten equal parts hundredth - one of one-hundred equal parts |
Chapter 9 videos:
Lesson 9.1 Relate Tenths and Decimals (CC.4.NF.6) Lesson 9.2 Relate Hundredths and Decimals (CC.4.NF.6) Lesson 9.3 Equivalent Fractions and Decimals (CC.4.NF.5) Lesson 9.4 Relate Fractions, Decimals, and Money (CC.4.NF.6) Lesson 9.5 Problem Solving - Money (CC.4.MD.2)^ Lesson 9.6 Add Fractional Parts of 10 and 100 (CC.4.NF.5) Lesson 9.7 Compare Decimals (CC.4.NF.7) ^ - created by Alden Jack - North Park Elementary * - created by Holly Stuart - North Park Elementary Chapter 9 Standards: Number and Operations - Fractions
Understand decimal notation for fractions, and compare decimal fractions. (CC.4.NF.3) a. Understand addition and subtraction of fractions as joining and separating parts referring to the same whole. 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. c. Add and subtract mixed numbers with like denominators, e.g., be replacing each mixed number with an equivalent fraction, and/or by using properties of operations and the relationship between addition and subtraction. 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. |