• CHAPTER 9: RELATE FRACTIONS & DECIMALS

    In Chapter 9 students will:  

    • understand decimal notation for fractions and compare decimal fractions
    • solve problems involving measurement and conversion of measurements from a larger unit to a smaller unit


    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 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.

  • 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)

          MONEY PIECES online learning tool (app versions are available for download)
    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