© 2000 U.S. MINT ALL RIGHTS RESERVED
24
Take a Chance—Part 1
Name Date
1. An eagle
quarter?
2. A new
quarter?
6. A quarter
minted in
2000 or
1999?
7. A quarter
minted
before
1999?
3. A quarter
minted in
1999?
4. A quarter
minted in
2000?
5. A quarter
minted
before
2000?
8. A cent?
9. A quarter?
10. A quarter
not minted
in 1999?
Fill in the blank with one of the following terms:
Likely, Unlikely, Impossible, Certain
1. The chance of
choosing a new
quarter:
__________________
2. The chance of
choosing an eagle
quarter:
__________________
3. The chance
of choosing a
quarter:
__________________
4. The chance
of choosing a
cent:
__________________
Hint: Remember to reduce fractions.
DIRECTIONS: You are given a bag of eight quarters containing one e
agle quarter
(made prior to 1999), five quarters from 1999, and two quarters minted in 2000.
Pulling out one quarter at a time and then returning the quarter to the bag, what
would be the probability (in fraction form) of choosing:
M0040 4-6 8/28/00 7:04 PM Page 24
Test Trial—Make a Prediction
When you flip a coin, what is the probability that
it will land on heads? On tails?
Now, test your prediction. Toss a quarter 30 times and record how many times
it lands on heads and how many times it lands on tails. For each result, color in a block.
Fraction
1/5
0.75
50%
80%
3/10
Decimal
Percent
Convert between fractions to decimals to percents in the chart below.
Did your prediction come true? Why or why not?
25
Take a Chance—Part 2
Name Date
© 2000 U.S. MINT ALL RIGHTS RESERVED
M0040 4-6 8/28/00 7:04 PM Page 25
© 2000 U.S. MINT ALL RIGHTS RESERVED
23
Teacher’s Pages
A Lesson on Probability
TERMS and CONCEPTS:
• Probability • Likely • Unlikely
• Impossible • Certain
STEPS:
1. Introduce the activity by asking students if they have ever played a game
involving chance. What is another name for “chance”? What does the word
“probability” mean?
2. Discuss various games and determine if they involve chance or strategy.
3. Discuss terms on board. Define as a class.
4. Pass out bags of quarters (real or paper) and the “Take a Chance” worksheets
(pages 24 and 25). Students may work in groups or as a whole class depending on
teacher preference. Have students examine the contents of the bags.
5. Review the process for changing fractions to decimals, decimals to percents, and
percents to fractions.
6. As a warm-up, have students determine the probability of pulling the eagle
quarter out of the bag. Have students write the outcome as a fraction (1/8).
7. Students will complete the “Take a Chance” worksheets (pages 24 and 25).
8. Check worksheet answers for accuracy. Quiz students on concepts learned
to verify understanding.
ANSWER KEY:
ENRICHMENT/EXTENSIONS:
Students can invent a game of chance to play with classmates.
Students can generate a quiz testing the new vocabulary terms/definitions
learned in the lesson.
1. 1/8
2. 7/8
3. 5/8
4. 2/8 or 1/4
5. 6/8 or 3/4
6. 7/8
7. 1/8
8. 0
9. 8/8 or 1
10. 3/8
1. Likely
2. Unlikely
3. Certain
4. Impossible
M0040 4-6 8/28/00 7:04 PM Page 23
