# Module 23: Mixed Operations-Math 2B - Course Guide

## Module Overview:

In this module, students will add and subtract numbers up to 100, add and subtract numbers up to 1,000, and identify whether a plus sign or minus sign makes an equation true. Students will write addition and subtraction sentences to make a specific number and determine a number after clues are given about place value, ordinals, odd/even, and addition/subtraction.

## Module Materials:

Lesson # Lesson Title Material(s)
1 Add and Subtract Numbers up to 100 counters (100)
crayons or colored pencils
pen or pencil
2 Add and Subtract Numbers up to 1,000 scissors
crayons or colored pencils
pen or pencil
3 What Operation? scissors
glue
crayons or colored pencils
pen or pencil
4 Ways to Make a Number scissors
crayons or colored pencils
pen or pencil
5 What’s My Number? crayons or colored pencils
pen or pencil

Module Objectives:

Lesson # Lesson Title Objective(s)
1 Add and Subtract Numbers up to 100
1. Add and subtract numbers up to 100.
2 Add and Subtract Numbers up to 1,000
1. Add and subtract numbers up to 1,000.
3 What Operation?
1. Identify whether a plus sign or minus sign makes an equation true.
4 Ways to Make a Number
1. Write addition and subtraction sentences to make a specific number.
5 What’s My Number?
1. Determine a number after clues are given about place value, ordinals, odd/even, and addition/subtraction.

Module Key Words:

Key Words
sum
difference
operation
hundred chart

Module Assignments:

Lesson # Lesson Title Page # Assignment Title
1 Add and Subtract Numbers up to 100 4 Hands-On
2 Add and Subtract Numbers up to 1,000 4 Hands-On
3 What Operation? 4 Hands-On
4 Ways to Make a Number 4 Hands-On
5 What’s My Number? 4 Hands-On

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 and Subtract Numbers up to 100
1. How do you add and subtract numbers up to 100?
Add and Subtract Numbers up to 1,000
1. How do you add and subtract numbers up to 1,000?
What Operation?
1. What is a missing operation?
Ways to Make a Number
1. How can you make a number using addition and subtraction?
What’s My Number?
1. How can you use clues to find a number?

## 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 and Subtract Numbers up to 100 Add and Subtract Numbers up to 100
1. What are the steps involved in adding and subtracting numbers up to 100?
Add and Subtract Numbers up to 1,000 Add and Subtract Numbers up to 1,000
1. What are the steps involved in adding and subtracting numbers up to 1,000?
What Operation? What Operation?
1. What is an operation?
2. How do we know which operation makes a number sentence correct?
Ways to Make a Number Ways to Make a Number
1. How can you make a number using equations?

## 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