Learning Goal
Understand that positive and negative numbers describe quantities having opposite directions or values
Teacher tools for this standard
Lesson Plan · Guided Notes · Exit Ticket · Re-teach · Homework
Teacher tools for this standard
Lesson Plan · Guided Notes · Exit Ticket · Re-teach · Homework
- Lesson Plan →Objectives, pacing and practice, built from this lesson's brief.
- Guided Notes →One page your students fill in and keep.
- Exit Ticket →Three items at the end of class. No student accounts.
- Re-teach →After an exit ticket: who missed what, and what to do tomorrow.
- Homework →Assign practice; it grades itself.
Understand that positive and negative numbers are used together to describe quantities having opposite directions or values (e.g., temperature above/below zero, elevation above/below sea level, credits/debits, positive/negative electric charge); use positive and negative numbers to represent quantities in real-world contexts, explaining the meaning of 0 in each situation.
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Understand that positive and negative numbers are used together to describe quantities having opposite directions or values (e.g., temperature above/below zero, elevation above/below sea level, credits/debits, positive/negative electric charge); use positive and negative numbers to represent quantities in real-world contexts, explaining the meaning of 0 in each situation.
What you'll learn
- Recognize that positive and negative numbers describe quantities measured in *opposite directions* from a chosen zero.
- Identify what zero represents in a real-world context: freezing for Celsius temperature, sea level for elevation, balanced for an account, neutral for electric charge.
- Use positive and negative numbers to represent real-world quantities (write "-200 ft" for "200 feet below sea level"; write "+8,848 m" for "Mount Everest's elevation"; write "-$30" for "owing $30").
- Interpret a signed value back into context language ("-12 degreesC" -> "12 degrees below freezing"; "-$30 balance" -> "owes $30").
- Recognize the *opposite* relationship between numbers like +3 and -3, and connect it to real-world opposites (deposit/withdrawal, climb/descend, gain/loss).
Slides
Step through the lesson, or watch it as a narrated video • 2 slide decks
Opposite directions and zero
✓ Start hereTranslation and opposites
Practice
Try it on your own