Module 9: Add Two-Digit Numbers to One-Digit Numbers-Math 2A - Course Guide
Module Overview:
In this module, students will add tens to practice adding two-digit numbers, make tens from ones to add, use the count-on strategy to add to a two-digit number. They will use a ten frame to add a two-digit number to a one-digit number, write and solve a two-digit addition sentence from a picture, and choose an addition strategy to solve.
Module Materials:
| Lesson # | Lesson Title | Material(s) |
|---|---|---|
| 1 | Add Tens |
Base-ten blocks (rods) Crayons (orange, yellow, red) |
| 2 | 9.2 Regroup Ones as Tens | base-ten blocks (rods and unit cubes); |
| 3 | Add to a Two-Digit Number Using a Number Line | Counters; |
| 4 | Add a One-Digit Number to a Two-Digit Number |
50 counters (2 colors) Scissors Crayons (red and blue) |
| 5 | Problem-Solving Strategy: Write an Addition Sentence |
Base-ten blocks Counters |
Module Objectives:
| Lesson # | Lesson Title | Objective(s) |
|---|---|---|
| 1 | Add Tens |
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| 2 | 9.2 Regroup Ones as Tens |
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| 3 | Add to a Two-Digit Number Using a Number Line |
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| 4 | Add a One-Digit Number to a Two-Digit Number |
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| 5 | Problem-Solving Strategy: Write an Addition Sentence |
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Module Key Words:
| Key Words |
|---|
|
Estimate Round Regrouping Number line Counting on Ten frame Place-value chart Addend Sum Addition strategy |
Module Assignments:
| Lesson # | Lesson Title | Page # | Assignment Title |
|---|---|---|---|
| 1 | Add Tens | 4 | Hands-On |
| 2 | 9.2 Regroup Ones as Tens | 4 | Hands-On |
| 3 | Add to a Two-Digit Number Using a Number Line | 4 | Hands-On |
| 4 | Add a One-Digit Number to a Two-Digit Number | 4 | Hands-On |
| 5 | Problem-Solving Strategy: Write an Addition Sentence | 4 | Hands-On |
Learning Coach Notes:
| Lesson # | Lesson Title | Notes |
|---|---|---|
| 1 | Add Tens | Ask your student to explain the ways they learned to add tens. |
| 2 | 9.2 Regroup Ones as Tens | Ask your student to describe what regrouping is and how to regroup ones as tens. |
| 3 | Add to a Two-Digit Number Using a Number Line | Ask your student to explain how to use a number line to add two-digit numbers. |
| 4 | Add a One-Digit Number to a Two-Digit Number | Ask your student to explain how using a ten frame and place value chart can help them add a one-digit number to a two-digit number. |
| 5 | Problem-Solving Strategy: Write an Addition Sentence | Ask your student to describe the different addition strategies they learned in this module. |
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 Tens |
|
| 9.2 Regroup Ones as Tens |
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| Add to a Two-Digit Number Using a Number Line |
|
| Add a One-Digit Number to a Two-Digit Number |
|
| Problem-Solving Strategy: Write an Addition Sentence |
|
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 |
|---|
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 |
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Module Outing:
Take some time to apply what your student is learning to the real world. Suggested outings are below.
| # | Outing |
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