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6th grade · Math · Unit 11 of 17

Data & Graphs

Histograms, range and line graphs

What your child practices

Telling discrete data (counted) from continuous data (measured), reading histograms and line graphs, finding the range, and spotting misleading graphs.

Maine Learning Results learning standard: 6.SP.B.4; 6.SP.B.5 · displaying numerical data and describing its center and spread

How we explain it

Children can open this short lesson before they practice.

  1. Discrete data is counted (pets). Continuous data is measured (height).
  2. A broken-line graph shows how something changes over time.
  3. The range is the greatest value minus the least value.

Example: Test scores: 6, 9, 7, 10. What is the range? Greatest: 10. Least: 6. 10 − 6 = 4. Answer: 4

Data & Graphs in Maine

In the Maine Learning Results, this is unit 11 of 17 in 6th grade Math, after Algebra Moves and before Powers and Common Factors.

Gradelings describes a child's practice on this unit as Beginning, Approaching, Meeting or Exceeding (Four practice steps). That reflects practice, not a report-card mark: the teacher decides the mark.

Source: Maine Department of Education

Sample questions

A taste of this unit. In the app, questions change every time and get easier or harder to match your child.

  1. Question 1

    Between which two times did the temperature rise the most?

    Temperature (°C) through the day
    Time°C
    8 a.m.6
    10 a.m.9
    12 p.m.7
    2 p.m.11
    • 10 a.m. to 12 p.m.
    • 12 p.m. to 2 p.m.
    • 8 a.m. to 10 a.m.

  2. Question 2

    Which data set has the greater range?

    Set ASet B
    2021
    924
    302
    1319
    713
    • Set A
    • Set B

  3. Question 3

    How many students read for 30–39 minutes?

    Minutes spent reading (histogram)
    MinutesStudents
    0–97
    10–197
    20–299
    30–392
    • 3
    • 6
    • 2

  4. Question 4

    A graph's scale jumps from 10 to 50 to 60 with equal spacing. Why is that misleading?

    • There are too many colors.
    • Equal spaces stand for different amounts.
    • The numbers are too small.

  5. Question 5

    Is this data discrete or continuous? the mass of a backpack

    • continuous
    • discrete

  6. Question 6

    Is this data discrete or continuous? the temperature outside

    • discrete
    • continuous

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