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
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