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)
  1. Identify and explain most appropriate addition strategies while solving addition problems
  2. Fluently add within 20 using addition strategies
2 Write Addition Sentences
  1. Identify the parts and whole in an addition sentence
  2. Identify the addends and sum in an addition sentence
  3. Write addition sentences to represent pictures
3 Add Three Numbers
  1. Identify three addends in addition sentences
  2. Identify three addends in a word problem
  3. Look for “friendly numbers” to add three addends
  4. Use “friendly numbers” to add three addends
4 Add on a Number Line
  1. Identify the larger addend of an addition sentence.
  2. Represent the addends of addition sentences on a number line.
  3. Use a number line to find the sum of addition sentences.
5 Missing Addends
  1. Find the missing addend using ten frames
  2. Find the missing addend using a number line
  3. Practice finding a missing addend

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)
  1. What do we call the different ways we can help ourselves add?
Write Addition Sentences
  1. How does addition help us?
Add Three Numbers
  1. How can we add three numbers?
Add on a Number Line
  1. How can we use a number line to help us add?
Missing Addends
  1. How can we find missing numbers using addition?

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
  1. What strategies were used in this video to help add?
Add Three Numbers Add 3 Numbers
  1. How does Ben add three numbers in this video?
Add on a Number Line Adding on a Number Line
  1. How do you add using a number line?
Missing Addends Missing Addends
  1. How can we find missing numbers using addition?

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