CCSS.Math.Content.4.MD.B

CCSS.Math.Content.4.MD.B is a cluster heading. These are the individual standards under it.

• CCSS.Math.Content.4.MD.B.4

  Make a line plot to display a data set of measurements in fractions of a unit (1/2, 1/4, 1/8). Solve problems involving addition and subtraction of fractions by...

01

What Students Need to Do

Students organize fractional measurement data on a line plot, often using halves, fourths, or eighths. They read the plot to answer questions using addition and subtraction.

02

What Mastery Looks Like

A student builds an accurate line plot with a labeled scale and one mark for every measurement. The student uses the plotted values to find totals, differences, or how many measurements meet a condition.

03

Common Misconceptions

Students may treat each mark as a new value instead of another measurement at the same value. They may use equal spacing for unequal fractions or misread the scale. Some count marks when the question asks for a total or difference.

04

How to Assess It

Give the measurements 2 1/4, 2 1/2, 2 1/4, 2 3/4, and 2 1/2 inches. Ask students to make a line plot and find the difference between the longest and shortest measurements.

1. 01

   Have students measure five classroom objects to the nearest quarter inch, then combine their results on a class line plot.

2. 02

   Ask, "How does the line plot show the most common length, and what evidence supports your answer?"

3. 03

   Play Line Plot Match, where partners match data cards to completed plots and explain each choice.

4. 04

   Plot ribbon lengths from a craft order, then calculate how much longer the longest piece is than the shortest piece.

• CCSS.Math.Content.2.MD.D

  The 2nd Grade version of this standard.

• CCSS.Math.Content.1.MD.C

  The 1st Grade version of this standard.

• CCSS.Math.Content.3.MD.B

  The 3rd Grade version of this standard.

• CCSS.Math.Content.5.MD.B

  The 5th Grade version of this standard.