Lesson 1: What Are Rational Numbers? Lesson 2: Representing Rational Numbers on the Number Line Lesson 3: Comparing Fractions Lesson 4: Describing Fractions as Decimals Lesson 5: Multiples of Positive Integers Lesson 6: Factors of Positive Integers Lesson 7: The Greatest Common Factor Lesson 8: Comparing Negative Fractions Lesson 9: Comparing Rational Numbers Lesson 11: Prime Factorization Lesson 12: Using Prime Factorizations Lesson 3: Equivalent Fractions Lesson 4: Adding Rational Numbers on the Number Line Lesson 5: Adding Rational Numbers Lesson 7: Subtracting Rational Numbers Lesson 8: Multiplying Whole Numbers by Rational Numbers Lesson 9: Multiplication as Scaling Lesson 10: Dividing Whole Numbers by Rational Numbers Lesson 14: Multiplying Fractions Lesson 15: Dividing Fractions Adding Fractions What Are Fractions?
Getting comfortable with the basics
Mixed Numbers
Count whole things and parts of things at the same time
The Magic 1
When the numerator equals the denominator
Equivalent Fractions, Part 1
Why 1/2 is the same as 3/6
Equivalent Fractions, Part 2
Doing it without pictures
Simplifying Fractions
How to write fractions using the smallest numbers possible
Improper Fractions
When the numerator is bigger then the denominator
Compare Fractions: Equal Denominator
We're serving up pizza for this one
Compare Fractions: Equal Numerator
Using tasty numbers instead of pizza slices
Add Fractions With Like Denominators
Just add the numerators
Subtract Fractions With Like Denominators
Just subtract the numerators
Adding and Subtracting Fractions With Different Denominators
Introducing the least common denominator
Adding and Subtracting Fractions with Whole and Mixed Numbers
More fun with improper fractions
Multiplying Fractions
You have six pizzas and you get to eat a third of them...
Multiplication with Fractions and Whole Numbers
Start by multiplying the numerators and denominators
Dividing Fractions
The "flip and multiply" trick
Division With Fractions and Whole Numbers
Change the numbers to fractions and then go for it!
