Unit 3: Stories with Addition and Subtraction
Unit Overview Video
(Coming Soon)
Unit Extra Practice
(Coming Soon)
Lesson
Standards
Learning Targets
Additional Resources
Lesson 1: Modeling Addition with Place Value Blocks and Drawings
I can model addition with regrouping in any place using base ten blocks and drawings and determine the reasonableness of my answer.
Video Links
Virtual Manipulatives
Lesson 2: Modeling Addition with Regrouping Place Values
NC.3.NBT.2
I can model addition with regrouping across two place values (ones and tens) and determine the reasonableness of my answer.
Virtual Manipulatives
Lesson 3: Modeling Subtracton with Place value Blocks and Drawings
I can model subtraction with ungrouping in any place using base ten blocks and drawings and determine the reasonableness of my answer.
Video Links
Virtual Manipulatives
Lesson 4: Modeling Subtraction with Ungrouping Place Values
NC.3.NBT.2
I can model subtraction with ungrouping in two place values (hundreds and tens) and check for the reasonableness of my answer.
Video Links
Virtual Manipulatives
Lesson 5: Finding Sums using the Expanded Method
I can use the expanded form to decompose numbers and then find sums for addition and check for the reasonableness of my answers.
Virtual Manipulatives
Lesson 6: Practice with Estimation & The Expanded Method to Find Sums
I can use expanded form to decompose numbers to find sums for addition and assess my reasonableness.
Virtual Manipulatives
Lesson 7: Finding Differences Using the Expanded Method
I can use the expanded form to decompose numbers and then find differences for subtraction.
I can check the reasonableness of my answers.
Video Links
Virtual Manipulatives
Lesson 8: Explain Subtraction Using the Expanded Method
NC.3.NBT.2
I can explain the expanded method to solve for subtraction and determine the reasonableness of solutions.
Video Links
Virtual Manipulatives
Lesson 9: Practice Using the Expanded Method
NC.3.NBT.2
I can use the expanded form to solve for subtraction and determine the reasonableness of my answers.
Video Links
Virtual Manipulatives
Lesson 10: Addition on a Number Line
I can model addition using a number line with accuracy.
Virtual Manipulatives
Lesson 11: Subtraction on a Number Line
I can model subtraction using a number line with accuracy.
Video Links
Virtual Manipulatives
Lesson 12: Inverse Operations on a Number Line
I can estimate and solve addition and subtraction inverse operations using two different strategies.
Technology Links
Virtual Manipulatives
Lesson 13: Exploring the Concept of Estimation
NC.3.NBT.2
I can explore various estimation strategies to assess the reasonableness of answers.
Video Links
Virtual Manipulatives
Lesson 14: Estimation is Approximation
I can use estimation strategies to assess the reasonableness of answers in two-step word problems.
Lesson 15: Solving Simple Problem Situations
I can determine if a problem requires an estimate or an exact answer.
Virtual Manipulatives
Lesson 16: More Solving Simple Problem Situations
I can accurately solve simple two-step problem situation involving mixed operations.
Virtual Manipulatives
Lesson 17: Solving Complex Problem Situations
I can solve problems involving comparison situations with an equation using a symbol for unknown.
Virtual Manipulatives
Lesson 18: Math-Libs Solving Two-Step Word Problems
I can create and solve two-step word problems involving addition and subtraction.
Technology Links
Lesson 19: Story Problem Sort and Solve
I can sort and solve word problems explaining strategies and solutions.
None
Lesson 20: Making Sense of Sharing Strategies
I can solve word problems explaining strategies and solutions.
None