# 3.MD.4 Task 2 - 3

```Formative Instructional and Assessment Tasks
Measuring Friendship Bracelets
Domain
Cluster
Standard(s)
Materials
Measurement and Data
Represent and interpret data.
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 scale is
marked off in appropriate units— whole numbers, halves, or quarters.
Measuring Friendship Bracelets handouts, Friendship Bracelets handout, rulers, pencils
Part 1:
 Distribute copies of the Measuring Friendship Bracelets handout and Friendship
Bracelets handout to students.
bracelets to sell. Measure each of their bracelets to the nearest &frac14; inch and record
your measurement data on the line plot.
 Provide ample time to measure bracelets on the handout and graph data.
Part 2:
 Prompt students to use data from the line plot to answer each question.
o What was the most common length for a bracelet?
o How many bracelets were shorter than 5 inches?
o If the Sunnyside Art Club sold bracelets that were 5 &frac14; inches or longer for
\$1.00 each, how much money would they make?
o What other questions do you have about the data collected?
Level I
Limited Performance
 Student is unable complete
 Students work is off-task or
incomplete.
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Rubric
Level II
Not Yet Proficient
Student does one of the
following:
 Student correctly completes
 Student partially completes
Level III
Proficient in Performance
 Student correctly measures each
friendship bracelet.
 Student correctly completes a
line plot to represent his/her data.
questions 1-3.
Standards for Mathematical Practice
Makes sense and perseveres in solving problems.
Reasons abstractly and quantitatively.
Constructs viable arguments and critiques the reasoning of others.
Models with mathematics.
Uses appropriate tools strategically.
Attends to precision.
Looks for and makes use of structure.
Looks for and expresses regularity in repeated reasoning.
NC DEPARTMENT OF PUBLIC INSTRUCTION
Measuring Friendship Bracelets
Boys and girls in the Sunnyside Art Club made friendship bracelets to sell.
Measure each of their bracelets to the nearest &frac14; inch and record your measurement
data on the line plot.
Bracelet Measurements
4
4&frac14;
4&frac12;
4&frac34;
5
5&frac14;
5&frac12;
5&frac34;
6
measurements to the nearest &frac14; inch
1. What was the most common length for a bracelet?
2. How many bracelets were shorter than 5 inches?
3. If the Sunnyside Art Club sold bracelets that were 5 &frac14; inches or longer for
\$1.00 each, how much money would they make?
NC DEPARTMENT OF PUBLIC INSTRUCTION
Friendship Bracelets
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NC DEPARTMENT OF PUBLIC INSTRUCTION