• ## 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
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)