- Definition
A formula is a math rule that uses symbols to show how different things are related, like how to find the area of a shape.
The formula for a rectangle's area, A = l × w, tells you to find the area by multiplying its length and width.
How to teach this in 30 seconds
Try this analogy: A formula is like a recipe for a specific shape, telling you exactly what to measure and how to combine the numbers.
Ask your child: If this formula is the recipe, what ingredients do we need to measure?
Common mix-up: Kids may think a formula is just a set of letters to memorize. A formula is a shortcut that explains a real relationship between a shape's measurements.
Examples
- The formula for a square's perimeter, P = 4s, tells us to multiply one side's length by 4.
- Using the formula A = b × h to find the area of a parallelogram.
formula is a term used in Ontario’s Kindergarten to Grade 8 curriculum.
Where this shows up
- Grade 4 Mathematics
- Grade 5 Mathematics
- Grade 7 Mathematics
- Grade 8 Mathematics
- Grade 9 Science and Technology
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 ↗
