Focus Standard: NY-6.NS.6a Recognize opposite signs of numbers as indicating locations on opposite sides of 0 on the number line. Recognize that the opposite of the opposite of a number is the number itself, and that 0 is its own opposite.

Focus Skill: locating positive and negative integers on a number line, identifying opposites.

Focus Mathematical Practice: MP4 - Model with mathematics. a. Specific objective(s) - These are measurable and specific enough that each can be fully accomplished by the end of the lesson. b. Focus Standard(s) and Skill(s) – The specific skills and standards covered in the lesson should be listed. c. Assessment tool(s) – An assessment measure should be included for the primary lesson objective. Name the form that the teacher will use to assess student mastery of the specific objective at the end of the lesson (e.g., exit ticket) and/or the specific knowledge or skills being measured. d. Vocabulary/Key Terms: List key vocabulary to be featured in this lesson. It is often helpful to distinguish between Tier 2 (high-frequency academic terms) and Tier 3 (content-specific) vocabulary. e. Anticipatory Set (Do Now): Open the lesson in a way that best sets students up for success in meeting the learning goal. The Do Now can also include a “hook”, or motivation. This can be very simple and is most effective towards the beginning of the lesson. Powerful motivations include stories (often personal about the teacher) and real-life connections. Think about ways to make the lesson interesting and engaging for students.
f. Mini-Lesson/Guided Practice: The best direct instruction or modeling is concise and emphasizes demonstration over explanation. Plan the direct instruction to be delivered to students and how they will be guided through their first at-bat in executing skills or demonstrating knowledge. g. Teacher Model/Think Aloud: Plan how to “show” students how to do by making your thinking transparent through models and think alouds. These can be most impactful when executed during the direct instruction component. h. Independent Practice: This is practice where students work independently or in groups. Independent Practice should be a major component of most lessons. i. Anticipated Misconceptions: What are the potential pitfalls or errors that you might anticipate for this lesson? How will these be addressed? j. Differentiation Plan: Identify focus students for the particular lesson and plan appropriate supports and extensions to meet the needs of diverse learners. k. Homework (if applicable): Plan how students will continue to grow their knowledge and skills with at home practice. l. Pacing timestamps: Include timestamps in the lesson planning document to clearly delineate the allocation of time within the instructional period. m. Co-Teacher Role (If applicable): The lead teacher should define the role of the co-teacher throughout the various stages of the lesson. The co-teacher should play an active role in executing instruction and supporting students during co-taught classes. The co-teacher role should be clearly delineated in the following lesson sections: i. Anticipatory Set ii. Mini-Lesson/Guided Practice iii. Teacher Model/Think Aloud iv. Independent Practice v. Assessment/Exit Ticket vi. Engagement Plan (Hook)

There is no required order to the above elements, except for that lesson coherence summaries should be the cover page for weekly lesson submissions and the specific objective(s) must be at the top of daily lesson plans. Also note that sometimes the most effective lessons invert the traditional sequence (modeling - guided practice - independent practice) and begin with independent practice/discovery and end with teacher modeling/instruction.

Specific Objectives ("I can..." statements)

I can locate positive and negative integers on a number line.
I can identify the opposites of numbers and explain their positions relative to zero.
I can explain why the opposite of the opposite of a number is the number itself and why zero is its own opposite.
I can use number line models to solve problems involving opposites of integers.

Success Criteria

I correctly place integers (positive and negative) on a number line.
I correctly match numbers with their opposites and explain their relationship to zero.
I demonstrate understanding of the property that the opposite of the opposite number returns to the original number.
I explain orally or in writing the concept of zero being its own opposite using a number line.

Focus Standard and Skill

Standard: NY-6.NS.6a
Recognize opposite signs of numbers as indicating locations on opposite sides of 0 on the number line. Recognize that the opposite of the opposite of a number is the number itself, and that 0 is its own opposite.
Focus Skill: Locating positive and negative integers on a number line, and identifying opposites.
Mathematical Practice: MP4 - Model with mathematics.

Vocabulary / Key Terms

Tier 2 (Academic)	Tier 3 (Content-Specific)
Opposite	Integer
Location	Number line
Model	Zero
Relationship	Opposite of a number
Position	Positive and negative numbers

Dyslexia-friendly options: Vocabulary cards with large font, color-coded (blue for positive, red for negative), paired with visuals (number line snaps/photos).

Materials Needed

Large classroom number line (floor or wall-mounted)
Individual whiteboards and markers
Number line work sheet with integers marked (for independent practice)
Colored counters (two colors to represent positive and negative)
Exit tickets
Mini dry erase number lines (for each student)
Chart paper & markers for teacher modeling

Pacing and Timing (90 minutes total)

Time	Activity
0–10 min	Anticipatory Set (Do Now) + Engagement Hook
10–25 min	Mini-Lesson / Teacher Model with Think Aloud
25–50 min	Guided Practice (Whole class + small groups)
50–75 min	Independent Practice with Differentiated Tasks
75–85 min	Assessment (Exit Ticket) & Review
85–90 min	Closing Discussion and Homework Explanation

Lesson Activities

Anticipatory Set (Do Now) & Engagement (0–10 min)

Activity: Students enter and see 5 numbers on the board, some positive (3, 5), some negative (-4, -6), and zero.
Prompt: "Quick! Place these numbers on the classroom number line."
Hook: Share a quick story—a chilly winter morning where the temperature thermometer went below zero, making sense of negative numbers in real life (weather example).
Co-Teacher Role: Circulate to support students who need help writing numbers and encourage quick thinking by prompting students with questions like “Which side of zero do you think -4 goes?”
Purpose: Activates prior knowledge and connects math to real-world experience.

Mini-Lesson/Teacher Model & Think Aloud (10–25 min)

Use the large classroom number line for demonstration.
Think Aloud: “Here’s zero in the middle. Numbers to the right are positive, numbers to the left are negative. See how -3 and 3 are the same distance away but on opposite sides? That’s what we call opposites.”
Model flipping a positive number to its opposite by tracing finger across zero and explaining the concept that opposite signs locate numbers on opposite sides.
Demonstrate that the opposite of the opposite brings you back to the original number by counting moves on the number line.
Show zero is its own opposite because it’s at the center and doesn’t move left or right.
Use colored counters to physically show this concept.
Co-Teacher Role: Handle student questions during the demonstration, point out students actively using hand signals to show opposites, and redirect misconceptions immediately.

Guided Practice (25–50 min)

Students use mini dry-erase number lines at desks.
Call out integers; students place a marker on their number lines.
Next, call out numbers and ask “What is the opposite?” Students then mark the opposite number on their line.
Small group rotations:
- Group 1: Needs support with identifying positive vs. negative placement. Use number line physical movement (step left/right).
- Group 2: Practice writing explanation sentences (“The opposite of -5 is 5 because...”).
- Group 3: Advanced learners explore multi-step problems (e.g., “Find the opposite of the opposite of -7 and explain.”).
Co-Teacher Role: Lead small group 1 with targeted support, while lead teacher circulates to groups 2 and 3.

Independent Practice (50–75 min)

Worksheet: Label integers on number lines, identify opposites, and solve visual problems (e.g., “If a submarine is 200 feet below sea level, what is its opposite position above sea level?”).
Dyslexia-friendly versions available: larger font, highlighted keywords, color cues for positive (blue) and negative (red) integers.
Advanced learners get extension: Create their own word problems involving opposites and exchange with a partner to solve.
Provide sentence starters for learners who need scaffolds (“The opposite of ___ is ___ because...”).
Co-Teacher Role: Monitor for comprehension, assist struggling learners by rephrasing questions or providing one-on-one support. Check advanced learners’ work for deeper understanding and provoke advanced reasoning questions.

Anticipated Misconceptions

Students may confuse absolute value with opposites; clarify that absolute value measures distance from zero without sign, opposites consider direction.
Some may think the opposite of zero changes it; reaffirm zero's special property with repeated visual and verbal examples.
Difficulty understanding that opposite signs mean opposite directions, not simply “negative number.” Use physical gestures to reinforce.

Assessment / Exit Ticket (75–85 min)

Quick 5-question exit ticket:
1. Place the number -4 on the number line.
2. What is the opposite of 7?
3. What is the opposite of the opposite of -3?
4. Why is zero its own opposite? (Write one sentence)
5. Choose a number and explain how you found its opposite.
Co-Teacher Role: Distribute and collect exit tickets, quietly assist students needing clarification, and help monitor for correct concept application.

Closing Discussion & Homework Explanation (85–90 min)

Recap key ideas with class questions: “Why do we think about opposites on a number line?”
Emphasize modeling math in real life (temperature, sea level).
Homework: Worksheet to practice locating and identifying opposites on number lines with some word problems. Invite family members to discuss real-life examples (e.g., debts and credits).
Option to use an interactive online number line app for extra practice (teacher provided).

Differentiation Strategies

Learner Group	Supports	Extension
English Language Learners (ELL)	Visual aids, vocabulary cards, sentence starters	Explain opposites using native language connections (if possible).
Students with Dyslexia	Dyslexia-friendly fonts, color coding, oral instructions	Manipulate physical number line models to demonstrate concepts.
Students with IEPs/504 Plans	Small group instruction, one-on-one scaffolding, additional processing time	Supplied graphic organizers to structure explanation writing.
Advanced Learners	Multi-step reasoning problems, create and solve custom problems	Explore integer operations (adding opposites, connections to zero pairs).

Co-Teacher Role Summary

Lesson Stage	Co-Teacher Role
Anticipatory Set	Support early problem-solving, prompt students for quick reasoning.
Mini-Lesson/Think Aloud	Handle student questions, assist with demonstrations, reinforce key vocabulary.
Guided Practice	Lead small group support for struggling learners, monitor peer discussions.
Independent Practice	Provide targeted help, challenge advanced learners with extension questions.
Assessment/Exit Ticket	Distribute/collect, provide quiet individual support, monitor understanding.
Engagement Hook	Share related stories and encourage student curiosity with targeted questions.

End of Plan

This plan is carefully aligned with Common Core State Standard NY-6.NS.6a, integrates MP4 Model with Mathematics, and balances rigor with accessibility. It nurtures mathematical discourse, precision, and conceptual understanding, and provides thorough scaffolding and enrichment in a structured, joyful, and efficient learning environment aligned to your teaching vision.

Opposites on Number Lines

Teaching Instructions