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Professor Heather Pierce

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Module 1: Addition and Subtraction


Number Classification

Video: Thinking of Numbers
Video: Connecting the Two Views
Video: Place Value
Video: Whole Numbers
Video: Number Paths and Lines

Game: Clear the Board
Game: 100s Chart Cover-Up
Game: Two Dashes and a Throw Away
Game: Make It! Build It! Say It!


Representing Numbers

Video: Decimals
Video: Decimals on the Number Line
Video: Decimal Words
Video: Negative Numbers


Comparing Numbers

Video: Comparing Numbers Using Place Value
Video: Comparing Numbers Using Number Lines


Adding and Subtracting Numbers

Video: Defining Addition and Subtraction
Video: Direct Modeling Strategies
Video: Counting Strategies
Video: Number Fact Strategies


Adding and Subtracting Word Problems

Video: Join Problems
Video: Separate Problems
Video: Part-Part-Whole Problems
Video: Compare Problems


Addition Properties

Video: Associative Property of Addition
Video: Commutative Property of Addition
Video: Using Properties of Addition
Video: The Equal Sign
Video: Multidigit Addition and Subtraction Tricks


Addition and Subtraction Algorithm

Video: Understanding the Addition Algorithm
Video: Understanding the Subtraction Algorithm
Video: Addition Strategies