Big Idea #13: Representing Action

Task 13A (Word), Task 13A (PDF)

Task 13B (Web PDF) 

Task 13C (Web PDF)

Task 13D (Word), Task 13D (PDF) 

Big Idea #14: Properties of Addition

Task 14A (Word), Task 14A (PDF) 

Task 14B (Word), Task 14B (PDF) 

Task 14C (Word), Task 14C (PDF)

Task 14D (Word), Task 14D (PDF)

Big Idea #15: Reasoning About Addition

Task 15A (Word), Task 15A (PDF)

Task 15B (Web PDF)

Task 15C (Word), Task 15C (PDF)

Task 15D (Word), Task 15D (PDF)

Big Idea #16: Representing Subtraction

Task 16A (Web PDF)

Task 16B (Web PDF)

Task 16C (Web PDF)

Task 16D (Word), Task 16D (PDF)

Big Idea #17: Connecting Addition and Subtraction

Task 17A (Word), Task 17A (PDF)

Task 17B (Word), Task 17B (PDF)

Task 17C (Word), Task 17C (PDF)

Task 17D (Word), Task 17D (PDF)

Big Idea #18: Reasoning About Subtraction

Task 18A (Word), Task 18A (PDF)

Task 18B (Web PDF)

Task 18C (Web PDF)

Task 18D (Word), Task 18D (PDF)

Big Idea #19: The Meaning of the Equal Sign

Task 19A (Word), Task 19A (PDF)

Task 19B (Word), Task 19B (PDF)

Task 19C (Web PDF)

Task 19D (Word), Task 19D (PDF)

Big Idea #20: Problem Solving With Addition and Subtraction

Task 20A (Word), Task 20A (PDF)

Task 20B (Word), Task 20B (PDF)

Task 20C (Web PDF)

Task 20D (Word), Task 20D (PDF)