Students extend the number line below zero to meet negative numbers — for temperatures, elevations, and money owed — and learn about opposites and absolute value (distance from zero).
Students will be able to…
A temperature can be 5 below zero, and a submarine can be 200 feet below sea level. How do we write and compare numbers less than zero?
Project this and slide along the number line, above and below zero. Watch the value, its opposite, and its absolute value change.
Tap any phase to open the teacher moves and student actions.
How cold is “5 below zero”? How do we write it?
Teacher models.
Class drives the Integer Line.
Students use integers.
One integer.
Aligned to the Common Core State Standards for Mathematics, including the Standards for Mathematical Practice.
Understand that positive and negative numbers describe quantities with opposite directions.
Recognize opposite signs as locations on opposite sides of 0.
Understand absolute value as distance from 0.
Understand a rational number as a point on the number line.
Preview the three formative checks. Tap “Sample answer” to see what mastery looks like — hide them before you print for students.
Have students match integers to real situations (elevation, temperature, money owed) and place them on a number line. A printable integer-context sheet is in the Math library.
Tap a card to flip it, then rate whether you knew it. Built from this lesson’s vocabulary.
A quick self-check with instant feedback, drawn from this lesson’s key terms.
A print-and-go review sheet with a built-in answer key. Tap “Show answer key” to reveal answers, or print the clean version for students.