Unit
6: Division and Number Theory 
Text 
Mr.
Yen's Videos 
Youtube Video Names and Links 

Page 


Chapter 12  Divide Greater
Numbers 

Location: Division of Whole Numbers 

Lesson 1  Hands On: Model Division 
260 


Lesson 2  Divide Larger Numbers and
Remainders 
262 
Division Introduction 
Introduction to Division 
Lesson 3  Hands On: Regroup in Division 
266 
Single Digit Divsion with Bigger Dividends 
Divison of a Number by a Single Digit Divisor 
Lesson 4  Divide Multiples of 10 
270 
Dividing Multiple of 10 by a Single Digit Divisor 
Dividing Multiples of 10 
Lesson 5  Problem Solving Plan:
Interpret Remainders 
272 


Chapter Review / Test 
276 






Chapter 13  Divide 3Digit
Numbers 

Location: Division of Whole Numbers 

Lesson 1  Hands On: Model Division:
3Digit Dividends 
280 


Lesson 2  3Digit Quotients 
282 
Division with Three Digit Quotients 
Three Digit Quotient Divison 
Lesson 3  Place the First Digit of the
Quotient 
286 
Placing that First Digit in the Quotient 
Long (column) division  Placing that First Digit in the Quotient 
Lesson 4  Zeroes in the Quotient 
290 
Column Division (Long Division) 
Column Division / Long Division

Lesson 4a (Alternate Approaches)


Division with Zeroes in Quotient 
Division with Zeroes in the Quotient 
Lesson 4b (Long Division Revisited) 

Practice Long (Column) Division 
Long (Column) Division by Single Digit Practice 
Lesson 5  Problem Solving Plan: Finding an Average

292 
Partial Quotient Division 
Partial Quotient Division 
Chapter Review / Test 
296 
Division Decomposed 
Division Decomposed 




  Location: Statistics and Data
 
   Finding Averages 




Chapter 14  Number Theory 

Location: Factoring 

Lesson 1  Hands On: Find Factors of a
Number 
300 


Lesson 2  Divisibility Rules 
302 
Divisibility Rules 
Divisibility Rules 
Lesson 3  Prime and Composite Numbers Lesson 3a 
306 
What are Factors? 
Factors 
Lesson 4  Factor Trees 
308 
Prime/Composite Numbers 
Prime and Composite
Numbers 
Lesson 5  PS Field Trip: San Diego
County Fair 
312 
Factor Tress 
Factor Trees 
Chapter Review / Test 
316 

