Ohio Mathematics Academic Content Standards (2001)
Use problem solving techniques and technology as needed to solve problems involving length, weight, perimeter, area, volume, time and temperature.
Grade Level Indicators (Grade 7)
Solve problems involving proportional relationships and scale factors; e.g., scale models that require unit conversions within the same measurement system.
Principles and Standards for School Mathematics
Apply appropriate techniques, tools, and formulas to determine measurements.
solve problems involving scale factors, using ratio and proportion;