Proportional Reasoning

Students use ratios, percentages, and segmented bar graphs to compare groups fairly, identify hidden patterns, and investigate how knowing one variable can help predict another.

Data and Resources

Additional Info

Field Value
Subject Area Mathematics
Grade Band 6-8
Technology Tool None
Class Time Estimate 2
Data Science Focus
  • 6-8.C.1.1a Identify measures of center as statistical values that represent the central tendency of data sets.
  • 6-8.C.1.1b Explain what measures of center are useful for and their limitations.
  • 6-8.C.2.1a Use reasoning about distributions to compare two groups based on quantitative variables.
Standards Alignment
  • 7.RP.A.2
  • 7.RP.A.3
  • 8.SP.A.4
Prerequisites Reading tables and bar graphs; equivalent ratios; converting fractions/ratios to percentages; part-to-whole reasoning; basic multiplication/division with decimals.
Version 1.0
Date Created July 8, 2026
Last Updated July 8, 2026