NY Next Generation Math NY-2.MD.9
The Standard
Generate measurement data by measuring lengths of several objects to the nearest whole unit, or by making repeated measurements of the same object. Present the measurement data in a line plot, where the horizontal scale is marked off in whole-number units.
New York State Next Generation Mathematics Learning Standards
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students measure several objects to the nearest whole unit or repeatedly measure one object. They organize the resulting whole-number measurements on a line plot with an evenly marked horizontal scale.
What Mastery Looks Like
- A student measures five pencils to the nearest centimeter and places one mark above each matching value on a line plot. The scale uses whole centimeters and shows repeated values with stacked marks.
Common Misconceptions
- Students may record partial units, use uneven scale intervals, or place a mark between whole-number values. They may forget that each plot mark represents one measurement.
How to Assess It
- Give students five paper strips to measure to the nearest centimeter. Ask them to make a whole-unit line plot and explain any stacked marks.
Lesson moves
Ways to Teach It
Measure a set of classroom objects to the nearest inch or centimeter, then place each result on a shared line plot.
Ask students what a stack of three marks above one value tells us about the measurements.
Play line-plot repair by correcting uneven scales, misplaced marks, and missing measurement labels.
Have several students measure the same desk to the nearest inch and display the repeated measurements on a whole-unit line plot.
Keep exploring
Related Standards
- NY-4.MD.2.b
Represent measurement quantities using diagrams that feature a measurement scale, such as number lines.
- NY-3.MD.4
Generate measurement data by measuring lengths using rulers marked with halves and fourths of an inch. Show the data by making a line plot where the horizontal ...
- NY-1.MD.2
Measure the length of an object using same-size "length units" placed end to end with no gaps or overlaps. Express the length of an object as a whole number of ...
- NY-2.MD.1
Measure the length of an object to the nearest whole by selecting and using appropriate tools such as rulers, yardsticks, meter sticks, and measuring tapes.
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