Introduction to Integers
Integers complete the number line. Students meet negative numbers in context — below zero, below sea level, overdrawn — and place them on a number line that extends in both directions. The concept of opposite is introduced: the opposite of +3 is −3; together they sum to zero.
What students explore
Integers complete the number line. Students meet negative numbers in context — below zero, below sea level, overdrawn — and place them on a number line that extends in both directions. The concept of opposite is introduced: the opposite of +3 is −3; together they sum to zero.
Key ideas
Represent positive and negative integers on a number line. Compare and order integers. Describe real-world contexts for negative numbers: temperature, elevation, debt. Determine the opposite of a given integer.
Putting it together
Apply these ideas through hands-on activities, guided practice, and real-world problems.