Grade 1: Step Up to Grade 2

Making Bar Graphs to Show
Outcomes
© Pearson Education, Inc.
Name
Name
Making Bar Graphs to Show Outcomes
Materials 3 index cards (cut in half vertically), bag
1. Write each letter in the word “MUMMY” on an index card.
Use the extra index card to make a tally chart for the
possible outcomes: M, U, and Y.
2. Place the letters in a bag. Shake them and without looking
pick a letter. Tally the letter. Replace the letter, shake, pick,
and tally. Do this 20 times.
Answer 3 to 8 to make and use a bar graph of the results.
3. Write the title: Letters Picked from
Bag above the graph and label the
axes: Outcome and Number of Times.
4. Complete the scale. Make the scale
by 2s.
5. Draw a bar for each letter. For every
2 tally marks for the letter M, color in
one square above the letter M. After
coloring a square for every 2 tallies,
if you have a tally left over, color half
of a square. Do this for U and Y.
6. Which two letters were picked about
the same number of times?
U and Y
7. Which bar is the longest? M
Intervention Lesson D89
Math Diagnosis and
Intervention System
Intervention Lesson D89
Letters Picked from Bag
16
14
12
10
8
6
4
2
0
M U Y
Outcome
The lengths of the bars will vary,
the bar for M should be the tallest.
Since the bar above M is the longest, M is the outcome that
occurred most often.
8. Reasoning Predict the next letter picked. Explain how you
made your prediction.
M; it is the outcome that occurred most often.
Intervention Lesson D89 267
Number of Times
Making Bar Graphs to Show Outcomes (continued)
Kendra spun a spinner 20 times. She recorded the number of
times each color was spun. Use the data for Exercises 9 to 13.
Outcome
Spinner Results
Tally Number
Purple 11
Green 4
Orange 4
Yellow 1
9. Make a bar graph in the grid on
the right to show the data.
10. Which color occurred most often?
least often?
purple; yellow
11. Reasoning What can you tell from
the orange and green bars?
Sample answer: Orange
and green were spun
the same number of times.
12. Reasoning Which color do you predict
would be spun next?
purple
Number of Times
13. Reasoning Draw what you think the spinner
looked like that Kendra used.
Sample spinner is shown.
268 Intervention Lesson D89
Math Diagnosis and
Intervention System
Intervention Lesson D89
Spinner Results
Outcome
Purple
Orange
Green
Yellow
© Pearson Education, Inc.
Teacher Notes
Math Diagnosis and
Intervention System
Intervention Lesson D89
Ongoing Assessment
Ask: How can you tell which color on a spinner
covers the most area by looking at a bar graph?
The color that has the longest bar probably has the
largest area on the spinner.
Error Intervention
If students have trouble make or reading bar
graphs,
then use D84: Reading and Making a Bar Graph,
D71: Reading Bar Graphs, and D75: Making Bar
Graphs.
If You Have More Time
Have students repeat the activity, but with the
word “COMPUTER”. Pick one letter from the bag
40 times. After the students have drawn their bar
graph, ask: Will it be easy to predict what letter
would be drawn next? Sample answer: No, all
the letters were drawn about the same amount of
times. It could be any of the letters. Then ask: Why
do you think all the letters were drawn about the
same number of times? There are only 1 of each
letter. So they are all equally likely to be drawn.
© Pearson Education, Inc. 1