Mississippi Math S-ID.1

MathGrades 9–12Interpreting Categorical and Quantitative Data

The Standard

Represent and analyze data with plots on the real number line (dot plots, histograms, and box plots). *

2025 Mississippi College- and Career-Readiness Standards for Mathematics · Summarize, Represent, and Interpret Data on a Single Count or Measurement Variable

Teacher's field guide

What This Standard Means

What Students Need to Do: Students turn a list of measurements into dot plots, histograms, and box plots on a numbered scale. They use the graphs to describe typical values, spread, clusters, and unusual values.
What Mastery Looks Like: A student stacks repeated values correctly on a dot plot and uses equal-width bins for a histogram. They place the median and quartiles on a box plot and support a claim with values from the graph.
Common Misconceptions: Students may leave gaps between histogram bars because they treat bins like categories. They may put the median in the middle of a box by eye or mistake the tallest bar for the largest measurement.
How to Assess It: Exit ticket: Using 2, 3, 3, 4, 5, 7, 8, 8, 10, draw a box plot and a histogram with bins 0–4, 5–9, and 10–14. Circle the median and the bin with the most values.

Lesson moves

Ways to Teach It

Give pairs ten sticky notes labeled 5, 5, 10, 10, 10, 15, 20, 20, 25, 30; stack them above a taped number line.
Plot 55, 61, 64, 72, 75, 77, 83, 92 as dots and in ten-point histogram bins; ask why only one graph shows exact scores.
Teams draw box plots from 2, 3, 3, 4, 5, 7, 8, 8, 10; award a point for each correct quartile and median.
Use 14 local daily high temperatures from a weather archive; students make a histogram with five-degree bins and name its most common interval.

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