# 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 one-digit addends in a number sentence. They will fill in missing two-digit 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: One-Digit scissors
glue
4 None
5 20.5 Order scissors
glue

Module Objectives:

Lesson # Lesson Title Objective(s)
1 20.1 Word Problems II
1. Solve word problems using addition and subtraction.
2 20.2 Missing Numbers
1. Fill in missing numbers when counting by tens.
3 20.3 Missing Addends: One-Digit
1. Fill in missing one-digit addends in a number sentence.
4 20.4 Missing Addends: Two-Digit
1. Find missing two-digit addends in number sentences.
5 20.5 Order
1. Describe the order of events.

Module Key Words:

Key Words
word problems
subtraction
tens
count
number
sum
remains
two-digit
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: One-Digit 2 Around We Go
3 20.3 Missing Addends: One-Digit 4 Fair Food
4 20.4 Missing Addends: Two-Digit 2 Arcade Games
4 20.4 Missing Addends: Two-Digit 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 2-column 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: One-Digit Write a variety of addition problems with one addend missing and have your student figure out the missing number.
4 20.4 Missing Addends: Two-Digit Write a variety of two-digit 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
1. How do you know when to add or subtract in a word problem?
20.2 Missing Numbers
1. How can you tell which number is missing in a sequence of numbers?
20.3 Missing Addends: One-Digit
1. How can you figure out the missing addend in a number sentence?
20.4 Missing Addends: Two-Digit
1. How can you figure out the missing addend in a number sentence?
20.5 Order
1. What does it mean to put things in 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
1. What were the keywords used in each word problem that told you to add?
2. What were the keywords used in each word problem that told you to subtract?
20.2 Missing Numbers The Five Keys
1. What were the missing numbers in the video?
20.5 Order That's An Order
1. What is the order of the kids wrapping presents?
2. What is the order of the butterfly life cycle?

## 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