Prime Time

Investigation 1—Building on Factor and Multiples

1.1—Playing the Factor Game—Finding Proper Factors The Factor Game Factor Millionaire

1.2—Playing to Win—Prime and Composite Numbers Prime Numbers Prime or Composite Fruit Splat

1.3—The Product Game—Finding Multiples The Product Game Finding Multiples

1.4—Rectangles and Factor Pairs Identify Factor Pairs Lesson Summary Video Lunch Video 1.4

Divisibility Rules

Investigation 2—Common Multiples and Factors

2.1—Riding Ferris Wheels—Choosing Common Multiples or Common Factors Common Multiples Explanation

2.2—Looking at Cicada Cycles—Choosing Common Multiples or Common Factors Common Multiples Snowball Fight Common Multiples Fruit Splat Common Multiples Venn Diagram

2.3—Bagging Snacks—Choosing Common Multiples or Common Factors Greatest Common Factor Explained

GCF Fruit Splat GCF Sketch's World

Investigation 3—Factorizations: Searching for Factor Strings

3.1—The Product Puzzle—Finding Factor Strings Factor Trees More Factor Trees

3.2—Finding the Longest Factor String Prime Factorization Square Numbers Explained

3.3—Using Prime Factorizations Using Factor Trees To Find LCM and GCF Prime Factorization Fruit Splat Prime Factorization

3.4—Unraveling the Locker Problem—Putting It All Together LCM and GCF Jeopardy Using Prime Factorization to Find the GCF and LCM video The Locker Problem Simulation

Investigation 4—Linking Multiplication and Addition: The Distributive Property

4.1—Reasoning with Even and Odd Numbers

4.2—Using the Distributive Property Distributive Property with Boxes Distributive Property Explained Distributive Property Practice Rags to Riches Distributive Property

4.3—Ordering Operations Order of Operations Explained Order of Operations Heist ABC Ya Order of Operations Practice Math Man Order of Operations Order of Operations XP Math

4.4—Choosing an Operation Practice Choosing Operation Multi-Step Math Hoops