- Definition
A "binomial" is a math phrase made up of two parts connected by a plus or minus sign, like "3x + 2".
The expression x − 7 is a binomial because it has two terms, x and −7.
How to teach this in 30 seconds
Try this analogy: A binomial is like a simple combo meal that always has exactly two items, like fries and a drink.
Ask your child: Can you create a two-part expression using your age?
Common mix-up: Kids might think any expression with a plus or minus sign is a binomial. A binomial must have exactly two terms that cannot be combined further.
Examples
- a + b is a binomial with two variable terms.
- 4y − 9 is a binomial.
- x² + 1 is also a binomial.
binomial is a term used in Ontario’s Kindergarten to Grade 8 curriculum.
Where this shows up
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 ↗
