One Less One More Recording.docx  Section 4: Game Time
One More/One Less Hop
Lesson 4 of 13
Objective: SWBAT identify numbers that are one more/one less using the number line as a tool.
Setting Up the Learning
Review Yesterday we learned what “one less” means. We saw that one less means to take away 1, it means our number is getting smaller. Today we are going to practice using one less and one more language. We are also going to look at what this looks like on the number line. Connect By the end of 1^{st} grade, I want you to have a number line in your brain. You won’t need a hundreds chart! You will be able to use your brain number line everywhere you go. 1 more and 1 less helps you make your brain number line stronger.
Objective : Your thinking job today is: How can I use the number line to show 1 more and 1 less? 
Opening Discussion
Present and Practice Definitions: Remember yesterday we said, “one less” means take away 1. Today we are going to also include 1 more, we all know what 1 more means. 1 more is when we want to add 1 more of something. (Show hand motions for bothsee video for the hand motions we use!)
Present Problem: The CCSS emphasizes a problem based approach to mathematics. Students engage in this real life scenario to help them visualize the meaning of 1 less.
Now I have 27 pencils. Ms. Anderson has 1 less than me. How many pencils does she have?
Students solve this problem by themselves/with a partner at their desks. Guiding questions before they go: These questions help students learn the types of questions they will eventually need to ask themselves before they go and try to solve a problem on their own. This helps them with MP1, Make sense of problems and persevere in solving them.

Resources (1)
Resources (1)
Resources
Strategy Share: I'll quickly share out a cubes and a number line strategy. I'll use these strategies as a jumping off point for using the number line in the game for today. Game Rules and Practice: I'll teach rules and practice the game with students. I'll use guiding questions for students to pay attention to the math embedded in the game. Game Rules: 1. Partner 1, Highlight a number on the number line. Ask: What’s one less? How do you know? 2. Partner 2, Hop to 1 less like a frog! 3. Partner 1: Asks, “What’s one more? How do you know?” 4. Partner 2: Hop to 1 more like a frog! 5. Switch.
Guiding questions:

Game Time
Students use number lines (see link for free number lines) to play with a partner.
Students who need more practice can use the number line for 020. Students who are ready can use number lines for 2140.
See attached document for recording sheet.
Resources (1)
Resources (1)
Resources
Closing
Our thinking job was to figure out how we could find a number that is 1 more and 1 less using the number line as a tool. We practice 1 more and 1 less to help us develop a number line that is stuck in our brain.

I'll play 12 more rounds as a class to close out the day.
Similar Lessons
Counting by ones to 120
Environment: Urban
Learning To Be A Friendly Partner
Environment: Suburban
Kicking Off the Year With Counting
Environment: Urban
 UNIT 1: Creating a Culture of Math
 UNIT 2: Count to 100 Every Day!
 UNIT 3: 10: A First Grader's Best Friend
 UNIT 4: Charting and Analyzing Data
 UNIT 5: Inch by Inch, Paperclip by Paperclip
 UNIT 6: Properties of Addition and Subtraction
 UNIT 7: Shapes and Blocks
 UNIT 8: Understanding Equality
 UNIT 9: Adding and Subtracting: Base Ten
 UNIT 10: Solving 3 Addend Problems
 UNIT 11: Missing Parts: Unknowns in All Positions
 UNIT 12: Parts of a Whole
 UNIT 13: Tick Tock, Tick Tock
 UNIT 14: Time is Money: Hitting all the MD Standards
 UNIT 15: Base 10 Bonanza
 UNIT 16: What the WHAT?! Teaching Challenging Story Problems
 LESSON 1: Missing Numbers to 50
 LESSON 2: Counting Strips
 LESSON 3: One Less!
 LESSON 4: One More/One Less Hop
 LESSON 5: Missing Numbers
 LESSON 6: Number Puzzles
 LESSON 7: Counting Collections
 LESSON 8: Counting Collections: 100 Objects
 LESSON 9: Constructing Tens and Ones
 LESSON 10: Building Tens at the Lego Factory
 LESSON 11: It's Elementary My Dear Watson
 LESSON 12: Down on the Farm: Base 10 Problems
 LESSON 13: WANTED: Runaway Number