Comparing data sets digitally
Interpret and compare data sets for nominal and ordinal categorical and discrete and continuous numerical variables using comparative displays (side-by-side column graphs with ordinal categories in a common order, back-to-back dot plots) made with digital tools, processing the data (percentages, ranges) and comparing distributions by mode, range and shape
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Comparing data sets digitally means practising the idea at the table with counters or paper models and one clear check. We will demo once, then your child tries.
Materials: Tally sheet or simple bar/dot sketch; A short set of category counts. 1. Say the goal of Comparing data sets digitally in plain words once. 2. Adult tallies one category and sketches a bar or dot plot. 3. Child tallies three small data sets and compares the tallest category. 4. Fresh check: one fresh tally comparison. Record and stop. Done: three correct tallies with a comparison sentence each. Proof: parent note of examples and results. Stop: End after the fresh check; keep optional challenge for another day.
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Start practiceComparing data sets digitally practice
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Secondary
Before you open · source notes
Secondary supports Comparing data sets digitally. An adult previews and guides; this is a learning page, not a scored quiz.
Free educational page, no sign-in required for the tested path.
Before you openAsk the learner one fact they learned and one question they still have.
Opening this link does not save learning or assess mastery.
Source, access and review notes
Public NRICH page. An anonymous GET on 2026-11-12 returned HTTP 200 with no login or payment prompt for this URL. Opening the link does not save practice or assess mastery. An adult should preview and guide the learner.
NRICH. “Secondary.” External page; Gakuva does not copy, host, embed, or redistribute materials.
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Check understanding
- Make a side-by-side column graph in a spreadsheet comparing the favourite sports (nominal) of Year 3 and Year 6 students and state the mode for each group
- Compare two classes' ratings of 'How much do you enjoy reading?' (never, sometimes, often, always) as percentages on side-by-side graphs with the categories in the same order, and say which class's ratings sit higher on the scale
- Compare two classes' jump distances by mode, range and shape using back-to-back dot plots made with a digital tool
“If your child has survey results from two classes of different sizes, can they use a spreadsheet to make a side-by-side graph, turn the counts into percentages, and compare the two fairly?”
Curriculum record
- Type
- Procedural
- Subject
- Mathematics
- Domain
- Data & Statistics
- Age range
- Ages 11–12
Standards