2. Read the Ideas
The grade threes are in a play. They need
costumes. But each student weighs a
different amount. Use the data to create
a bar graph to determine how many of
each size need to be ordered.
2
3. What are we Measuring?
1. Weight of Grade Three Students
2. Costumes of Grade Three Students
3. Students in Grade Three are in a Play
3
4. Title
What we measure becomes the TITLE of
our bar graph.
Be sure to capitalize the important words
in the title.
4
5. Tally the Data.
59 60 61 62 63 64 65 66 67 68
All these number sit on the x-axis.
John
63
Margie
68
Peggy
59
Caleb
68
Michael
60
Devon
63
Ryan
63
Caitlin
67
Julie
68
Hunter
60
Meg
63
Brian
59
Helen
59
Karen
62
Marcus
62
Jack
61
Sophie
66
Evan
63
5
6. Tally the Data.
59 60 61 62 63 64 65 66 67 68
What do these numbers measure?
That becomes the title of the x-axis!
John
63
Margie
68
Peggy
59
Caleb
68
Michael
60
Devon
63
Ryan
63
Caitlin
67
Julie
68
Hunter
60
Meg
63
Brian
59
Helen
59
Karen
62
Marcus
62
Jack
61
Sophie
66
Evan
63
6
9. Make your Graph
Weight of Students in Grade Three
Weight of Students
NumberofStudents
59 60 61 62 63 64 65 66 67 68
These
numbers
came from
the tally.
They go
beneath the
box, not on
the line.
5
4
3
2
1
0
These numbers
are the tally
marks. They sit
on the line.
Sometimes they
will be in
intervals
depending on the
greatest number
of tally marks.
9
10. Make your Graph
Weight of Students in Grade Three
Weight of Students
NumberofStudents
59 60 61 62 63 64 65 66 67 68
5
4
3
2
1
0
10
11. Find the Minimum
Weight of Students in Grade Three
Weight of Students
NumberofStudents
59 60 61 62 63 64 65 66 67 68
5
4
3
2
1
0
11
12. Find the Maximum
Weight of Students in Grade Three
Weight of Students
NumberofStudents
59 60 61 62 63 64 65 66 67 68
5
4
3
2
1
0
12
13. Find the Range =
Weight of Students in Grade Three
Weight of Students
NumberofStudents
59 60 61 62 63 64 65 66 67 68
5
4
3
2
1
0
maximum - minimum
13
14. Find the Mode
Weight of Students in Grade Three
Weight of Students
NumberofStudents
59 60 61 62 63 64 65 66 67 68
5
4
3
2
1
0
14
15. Find the Median
Weight of Students in Grade Three
Weight of Students
NumberofStudents
59 60 61 62 63 64 65 66 67 68
5
4
3
2
1
0
15
16. Find the Median
59 60 61 62 63 64 65 66 67 68
lll ll l l llll l l lll
Write out each data value in order.
Since
there are
3 people
who weigh
59 pounds,
write 59
three
times.
59 59 59 60 60 61 62 63 63 63 63 63 66 67 68 68 68
Cross out one on each end until you find the middle number.
59 59 59 60 60 61 62 63 63 63 63 63 66 67 68 68 68
16
