Module 3: Add To (up to 20)Math 2A  Course Guide
Module Overview:
In this module, students will identify and explain the most appropriate addition strategies while solving addition problems, fluently add within 20 using addition strategies, identify the parts and whole in an addition sentence, identify the addends and sum in an addition sentence, and write addition sentences to represent pictures. Students will identify three addends in addition sentences, identify three addends in a word problem, look for “friendly numbers” to add three addends and use “friendly numbers” to add three addends. They will identify the larger addend of an addition sentence, represent the addends of addition sentences on a number line, and use a number line to find the sum of addition sentences. Finally, they will find the missing addend using ten frames, find the missing addend using a number line, and practice finding a missing addend.
Module Materials:
Lesson #  Lesson Title  Material(s) 

1  Add To (Up to 20) 
counters (25) crayons or colored pencils pen or pencil 
2  Write Addition Sentences 
scissors glue crayons or colored pencils pen or pencil 
3  Add Three Numbers 
counters (25) crayons or colored pencils pen or pencil 
4  Add on a Number Line 
counters (25) crayons or colored pencils pen or pencil 
5  Missing Addends 
crayons or colored pencils pen or pencil 
Module Objectives:
Lesson #  Lesson Title  Objective(s) 

1  Add To (Up to 20) 

2  Write Addition Sentences 

3  Add Three Numbers 

4  Add on a Number Line 

5  Missing Addends 

Module Key Words:
Key Words 

Count on to add Doubles and near doubles Make a ten Add to a ten Addend Sum Part Whole Addition Sentence Addends Friendly numbers Number line Missing addend 
Module Assignments:
Lesson #  Lesson Title  Page #  Assignment Title 

1  Add To (Up to 20)  4  It’s Your Turn! 
1  Add To (Up to 20)  6  Try It Out! 
2  Write Addition Sentences  4  It’s Your Turn! 
3  Add Three Numbers  2  Three Addend Addition 
3  Add Three Numbers  4  It’s Your Turn! 
3  Add Three Numbers  5  Write It Out! 
4  Add on a Number Line  7  It's Your Turn! Part 2 
4  Add on a Number Line  8  Write It Out! 
5  Missing Addends  4  It’s Your Turn! 
5  Missing Addends  5  Write It Out! 
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 To (Up to 20) 

Write Addition Sentences 

Add Three Numbers 

Add on a Number Line 

Missing Addends 

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 To (Up to 20)  Adding to 20 

Add Three Numbers  Add 3 Numbers 

Add on a Number Line  Adding on a Number Line 

Missing Addends  Missing Addends 

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 
