- Definition
An integer is a whole number (like 1, 2, 3) or its negative counterpart (like -1, -2, -3), including zero.
A temperature of 5 degrees below zero is represented by the integer -5.
How to teach this in 30 seconds
Try this analogy: Integers are like the floors in a building with a basement — you can go up from the ground floor (positive numbers) or down into the basement (negative numbers).
Ask your child: If you owe your friend five dollars, what integer would show that?
Common mix-up: Kids may think integers are just positive and negative whole numbers. Zero is also an integer, and integers never include fractions or decimals.
Examples
- Gaining 10 yards in a football game is +10, while losing 5 yards is -5.
- Depositing $20 in a bank account is +20, while withdrawing $15 is -15.
integer is a term used in Ontario’s Kindergarten to Grade 8 curriculum.
Where this shows up
+1 more mention across the curriculum
The descriptions on this page are SmartStudy’s own original, plain-language writing — not the Ministry’s wording. They are aligned to the Ontario Curriculum, © King’s Printer for Ontario. For the Ministry’s official wording, see the source link below. SmartStudy is an independent service and is not affiliated with, endorsed by, or sponsored by the Government of Ontario or the Ministry of Education. Ontario Curriculum and Resources ↗
