Unit 3 ~ More Decimals and Fractions

Lesson 15- Multiplying a Decimal by a Whole Number

Session 1: Explore Multiplying a Decimal by a Whole Number 

Multiply a decimal by a one-digit whole number: tenths or hundredths

Session 2: Develop Multiplying a Decimal by a Whole Number 

Multiply a decimal by a one-digit whole number using blocks

Multiply a decimal by a one-digit whole number using the distributive property

Session 3: Refine Multiplying a Decimal by a Whole Number 

Multiply a decimal by a one-digit whole number

Multiply a decimal by a one-digit whole number: word problems



Lesson 16- Multiply Decimals

Session 1: Explore Multiplying Decimals

Multiply by 0.1 or 0.01 


Session 2: Develop Multiplying Decimals Less Than 1

Multiply decimals less than one using grids


Session 3: Develop Multiplying Decimals Greater Than 1

Multiply decimals using grids

Multiply decimals using area models

Multiply two decimals: products up to hundredths

Multiply two decimals: products up to thousandths

Session 4: Refine Multiplying Decimals



Lesson 17- Divide Decimals

Session 1: Explore Dividing Decimals

Divide by 0.1 or 0.01 

Session 2: Develop Dividing a Decimal by a Whole Number

Divide decimals by whole numbers without adding zeros 

Session 3: Develop Dividing by Tenths

Divide by decimals without adding zeros 

Session 4: Develop Dividing by Hundredths

Divide by decimals 

Session 5: Refine Dividing Decimals


Lesson 18- Fractions as Division

Session 1: Explore Fractions as Division

Relate division and fractions 

Fractions of a whole: word problems 

Session 2: Develop Fractions as Division

Understand fractions as division: word problems 

Session 3: Refine Fractions as Division



Lesson 19- Understand Multiplication by a Fraction

Session 1: Explore Multiplication by a Fraction

Multiply two fractions using models

Multiply two fractions

Session 2: Develop Understanding of Multiplication by a Fraction

Multiply two unit fractions using models

Multiply fractions by whole numbers: choose the model

Session 3: Refine Ideas about Multiplying by a Fraction

Complete the fraction multiplication sentence I

Complete the fraction multiplication sentence II



Lesson 20- Multiply Fractions to Find Area

Session 1: Explore Multiplying Fractions to Find Area

Scaling whole numbers by fractions: justify your answer 

Session 2: Develop Multiplying Unit Fractions to Find Area

Multiply fractions to find area

Session 3: Develop Tiling a Rectangle to Find Area

Area of rectangles with fractions 

Session 4: Refine Multiplying Fractions to Find Area



Lesson 21- Understand Multiplication as Scaling

Session 1: Explore Multiplication as Scaling

Scaling whole numbers by fractions: justify your answer 

Session 2: Develop Understanding of Multiplication as Scaling

Scaling whole numbers by fractions

Scaling fractions by fractions

Session 3: Refine Ideas About Multiplication as Scaling



Lesson 22:  Multiply Fractions in Word Problems

Session 1: Explore Multiplying Fractions in Word Problems

Session 2: Develop Multiplying Fractions in Word Problems

Multiply two fractions: word problems

Session 3: Develop Multiplying with Mixed Numbers in Word Problems 

Multiply with mixed numbers using area models

Multiply a mixed number by a whole number using a model I

Multiply a mixed number by a whole number using a model II

Multiply mixed numbers, fractions, and whole numbers

Session 4: Refine Multiplying Fractions in Word Problems 

Multiplication with mixed numbers: word problems

Area of rectangles with fractions and mixed numbers

Multiply fractions and mixed numbers in recipes



Lesson 23:  Understand Division with Unit Fractions

Session 1: Explore Division with Unit Fractions

Divide unit fractions by whole numbers using models

Divide whole numbers by unit fractions using models

Session 2: Develop Understanding of Division with Unit Fractions 

Divide unit fractions by whole numbers using area models

Divide whole numbers by unit fractions using area models

Divide unit fractions and whole numbers using number lines

Session 3: Refine Ideas About Division with Unit Fractions 

Divide unit fractions by whole numbers

Divide whole numbers by unit fractions

Divide unit fractions and whole numbers


Lesson 24:  Divide Unit Fractions in Word Problems

Session 1: Explore Dividing Unit Fractions in Word Problems

Divide unit fractions and whole numbers using area models

Session 2: Develop Dividing a Unit Fraction by a Whole Number

Divide unit fractions and whole numbers: word problems

Session 3: Develop Dividing a Whole Number by a Unit Fraction

Session 4: Refine Dividing Unit Fractions in Word Problems