Montana Math MT.5.MD.2
The Standard
Make a line plot to display a data set of measurements in fractions of a unit and use operations on fractions to solve problems involving information presented in line plots.
2026 Montana Mathematics Content Standards
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students make a line plot from measurements recorded in fractions of a unit. They use the plotted values to find totals, compare lengths, or split a total evenly.
What Mastery Looks Like
- They place measurements at evenly spaced marks and stack an X for every item. They use the plot to find a total, a difference, or an equal share, showing their fraction work.
Common Misconceptions
- Students may space fraction marks unevenly or omit repeated measurements. When finding a total, they may count Xs instead of adding the values, or add denominators.
How to Assess It
- Plot these ribbon lengths in inches: 1 1/4, 1 1/2, 1 1/4, and 1 3/4. How much ribbon is there in all? Show your fraction calculation.
Lesson moves
Ways to Teach It
Pairs measure six precut paper strips to the nearest quarter inch, then stack Xs above matching marks on a shared line plot.
Show two ribbons at 1 1/4 inches and three at 1 1/2 inches on a plot; ask, "Which group has more ribbon, and how much more?"
Draw two fraction-length cards, mark both values on a line plot, then race a partner to find their combined length.
For gift tags, measure six ribbon scraps to the nearest quarter inch, plot their lengths, and calculate the total length of the two longest.
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Printable MT.5.MD.2 Worksheet
A ready-to-print activity worksheet aligned to MT.5.MD.2, with an answer key for the teacher on its own page. No account needed.
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Related Standards
- MT.3.NF.2
Understand a fraction as a number on the number line by: Representing a unit fraction on a number line, Representing a fraction as multiple copies of a unit fra...
- MT.4.MD.4
Make a line plot to display a data set of measurements in fractions of a unit and solve problems involving addition and subtraction of fractions by using inform...
- MT.6.NS.1
Represent, interpret, and compute quotients of fractions and solve problems in context involving division of fractions by fractions.
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