Math 3: Module 6: Problem Solve: Add and Subtract Within 1000 - Course Guide


Module Overview:

In this module, students will calculate the sums of 2-digit and 3-digit numbers without regrouping, calculate the sums of 2-digit and 3-digit numbers with regrouping, calculate the differences of 2-digit and 3-digit numbers without regrouping, calculate the differences of 2-digit and 3-digit numbers with regrouping, and apply addition and subtraction concepts to solve word problems.


Module Materials:

Lesson # Lesson Title Material(s)
1 Add Without Regrouping crayons or colored pencils
pen or pencil
2 Add with Carrying to Regroup crayons or colored pencils
pen or pencil
3 Subtract Without Regrouping crayons or colored pencils
pen or pencil
4 Subtract with Borrowing to Regroup crayons or colored pencils
pen or pencil
5 Problem Solving: Add and Subtract crayons or colored pencils
pen or pencil

Module Objectives:

Lesson # Lesson Title Objective(s)
1 Add Without Regrouping
  1. Calculate the sums of 2-digit and 3-digit numbers without regrouping.
2 Add with Carrying to Regroup
  1. Calculate the sums of 2-digit and 3-digit numbers with regrouping.
3 Subtract Without Regrouping
  1. Calculate the differences of 2-digit and 3-digit numbers without regrouping.
4 Subtract with Borrowing to Regroup
  1. Calculate the differences of 2-digit and 3-digit numbers with regrouping.
5 Problem Solving: Add and Subtract
  1. Apply addition and subtraction concepts to solve word problems.

Module Key Words:

Key Words
addition
regrouping
subtraction
problem solving

Module Assignments:

Lesson # Lesson Title Page # Assignment Title
1 Add Without Regrouping 5 Hands-On
2 Add with Carrying to Regroup 5 Hands-On 
3 Subtract Without Regrouping 5 Hands-On
4 Subtract with Borrowing to Regroup 5 Hands-On
5 Problem Solving: Add and Subtract 5 Hands-On


Learning Coach Notes:

None

Module Guiding Questions:

When a student starts a lesson ask them questions to check for prior knowledge and understanding and to review concepts being taught. At the end of the lesson ask the questions again to see if their answer changes.

Lesson Title Question
Add Without Regrouping
  1. How do we add vertically and horizontally using place value?
Add with Carrying to Regroup
  1. How do we add with regrouping?
Subtract Without Regrouping
  1. How do we subtract vertically and horizontally using place value?
Subtract with Borrowing to Regroup
  1. How do we subtract with regrouping?
Problem Solving: Add and Subtract
  1. How do you know when to add or subtract in a word problem?

Module Video Questions:

When a student watches a video take time to ask them questions about what they watched. Suggested questions for the videos in this module are listed here. Suggestion: Have the student watch the entire video first all the way through. Then have them watch the video a second time, as they watch it pause the video and ask the questions.

Lesson Title Video Question
Add Without Regrouping Fall Leaves Addition
  1. How do we add vertically and horizontally using place value?
Add with Carrying to Regroup Apple-Picking Addition
  1. How can you use regrouping to add the apples the class picked?
Subtract Without Regrouping Scarecrow Subtraction
  1. How can you use place value to subtract vertically and horizontally?
Subtract with Borrowing to Regroup Subtract to Bake
  1. How can you use regrouping to subtract the temperature of the oven?
Problem Solving: Add and Subtract Add or Subtract
  1. How do you know when you have to add or subtract in a word problem?

Module Suggested Read Aloud Books:

Take time to read to your student or have them read aloud to you. Read a different book each day. While reading the book point out concepts being taught. You may purchase these books or find them at your local library. Suggested things to discuss while reading the book:

  • What is the main idea?
  • What are three things new you learned?
  • How does this book relate to what you are learning about?

# Book Author Lexile Level


Module Outing:

Take some time to apply what your student is learning to the real world. Suggested outings are below.

# Outing