Ratio Notation and Relationships
Understand that a multiplicative relationship between two quantities can be expressed as a ratio; use ratio notation; simplify ratios
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Can your child explain why a ratio like 3:4 is really the same as the fraction ¾ — and show how that relationship connects to a straight-line graph through the origin?
Understand that a multiplicative relationship between two quantities can be expressed as a ratio; use ratio notation; simplify ratios
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Check understanding
- Explain why 'for every 2 red beads there are 5 blue beads' can be written as 2:5 or as 2/5 of the blue count
- Identify the multiplicative relationship in a table of values (e.g. y is always 3 times x)
- Connect the ratio a:b to the fraction a/b and to the linear function y = (a/b)x
“Can your child explain why a ratio like 3:4 is really the same as the fraction ¾ — and show how that relationship connects to a straight-line graph through the origin?”
Curriculum record
- Type
- Conceptual
- Subject
- Mathematics
- Domain
- Ratio & Proportion
- Age range
- Ages 12–14
Standards