Module 20  Math 1B  Course Guide
Module Overview:
In this module, students will solve word problems using addition and subtraction. They will be able to fill in missing numbers when counting by 10's. Students will fill in missing onedigit addends in a number sentence. They will fill in missing twodigit addends in a number sentence. Students will determine the order of events.
Module Materials:
Lesson #  Lesson Title  Material(s) 

1  None  
2  None  
3  20.3 Missing Addends: OneDigit 
scissors glue 
4  None  
5  20.5 Order 
scissors glue 
Module Objectives:
Lesson #  Lesson Title  Objective(s) 

1  20.1 Word Problems II 

2  20.2 Missing Numbers 

3  20.3 Missing Addends: OneDigit 

4  20.4 Missing Addends: TwoDigit 

5  20.5 Order 

Module Key Words:
Key Words 

word problems subtraction addition tens count number addends sum remains twodigit greater lesser order events determine 
Module Assignments:
Lesson #  Lesson Title  Page #  Assignment Title 

1  20.1 Word Problems II  4  Filled with Air 
2  20.2 Missing Numbers  4  Puzzle Me 
3  20.3 Missing Addends: OneDigit  2  Around We Go 
3  20.3 Missing Addends: OneDigit  4  Fair Food 
4  20.4 Missing Addends: TwoDigit  2  Arcade Games 
4  20.4 Missing Addends: TwoDigit  4  Munchies 
5  20.5 Order  4  Eat It 
Learning Coach Notes:
Lesson #  Lesson Title  Notes 

1  20.1 Word Problems II  Help your student create a 2column chart in their math notebook. On one column, write key words for adding. On the other column, write key words for subtracting. Have them list the keywords used in story problems to add in the adding column and subtract in the subtracting column. 
2  20.2 Missing Numbers  On index cards write the numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 and 100 (one number on each card). Put the cards in sequential order face up and remove 3 cards from the sequence. Have your student guess what the missing numbers are. Repeat at least 5 more times, removing different numbers each time. 
3  20.3 Missing Addends: OneDigit  Write a variety of addition problems with one addend missing and have your student figure out the missing number. 
4  20.4 Missing Addends: TwoDigit  Write a variety of twodigit addition problems with one addend missing and have your student figure out the missing number. 
5  20.5 Order  Have your student write the order of events they do during their typical day. 
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 

20.1 Word Problems II 

20.2 Missing Numbers 

20.3 Missing Addends: OneDigit 

20.4 Missing Addends: TwoDigit 

20.5 Order 

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 

20.1 Word Problems II  Through the Skies 

20.2 Missing Numbers  The Five Keys 

20.5 Order  That's An Order 

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 
