2:34
Thinking of Numbers
Professor Heather Pierce
3:47
Connecting the Two Views
4:58
Place Value
1:31
Whole Numbers
3:10
Number Paths and Lines
2:56
Decimals
1:48
Decimals on the Number Line
2:25
Decimal Words
3:25
Negative Numbers
5:54
Comparing Numbers Using Place Value
2:39
Comparing Numbers Using Number Lines
Defining Addition and Subtraction
6:25
Direct Modeling Strategies
4:12
Counting Strategies
3:43
Number Fact Strategies
3:56
Join Problems
3:33
Separate Problems
2:12
Part-Part-Whole Problems
3:04
Compare Problems
4:00
Associative Property of Addition
1:26
Commutative Property of Addition
Using Properties of Addition
4:45
The Equal Sign
4:06
Multidigit Addition and Subtraction Tricks
9:39
Understanding the Addition Algorithm
Understanding the Subtraction Algorithm
10:53
Addition Strategies
3:15
Defining Multiplication
2:05
Array Problems
1:52
Multiplicative Comparison Problems
4:18
Ordered Pair Problems
5:14
Commutative Property of Multiplication
2:48
Associative Property of Multiplication
3:00
The Distributive Property
2:29
Mental Multiplication
Multiplication Strategies
4:30
Number Fact Strategies for Multiplication
4:49
Partial Products and the Standard Algorithm
6:36
Array and Lattice Multiplication
2:49
What is Division
Measurement Division
4:20
Partitive Division
4:25
Dividing with Remainder
4:05
Reasoning Through Division
7:02
Scaffold Division
2:14
Long Division
5:25
Defining Fractions
Fractions on a Number Line
3:32
Equivalent Fractions
3:51
Simplifying Fractions
4:59
Comparing Fractions Using Denominators
3:17
Comparing Fractions Using Numerators
1:43
Adding Fractions with Like Denominators
Adding Fractions with Unlike Denominators
2:47
Extending the Multiplication Definition
3:55
Multiplication of Fractions
3:52
Fraction Division as How Many Per Group
Fraction Division as How Many Groups
Dividing Numerators with Common Denominators
5:20
Multiplying by the Reciprocal
