lesson
Modelling Real-World Problems with Rational Numbers
Translate verbal and visual real-world scenarios into structured mathematical models using rational and real number operations.
Updated 1 month ago · 3 views
Premium Lesson
This lesson is part of a track
Public learning track
Applied Problem Solving with Rational and Real Numbers
5 lessons
Goal
Solve complex, multi-step real-world problems combining fractions, decimals, signed numbers, exponents, and estimation.
5 lessons
0 of 5 done
- Multi-Step Problems with Rational NumbersUp next
- Mixed Operations with Rational Numbers: Real-World ProblemsNot started yet
- Multi-Step Real-World Problems with Fractions, Decimals, and PercentsNot started yet
- Modelling Real-World Problems with Rational NumbersYou are here
- Evaluating Precision and Error in Multi-Step MeasurementsNot started yet
Learning standards covered
OGM.8.NO.3Open Global Math Standards 2026™ · 7th GradeApply and extend the properties of addition and subtraction to rational numbers; interpret p - q as p + (-q), calculate the distance between rational numbers on a number line as |p - q|, and solve multi-step additive problems in real-world contexts.
OGM.8.NO.4Open Global Math Standards 2026™ · 7th GradeApply and extend multiplication and division to rational numbers (fractions, terminating/repeating decimals, and signed numbers) using properties of operations; understand that -(p/q) = (-p)/q = p/(-q) for non-zero divisors, and convert fractions to decimals using long division.
OGM.8.NO.6Open Global Math Standards 2026™ · 7th GradePerform numerical estimation, rounding to specified decimal places or significant figures, assess the reasonableness of calculation results, and use scientific notation to represent large and small quantities.