

Sports, Mathematics and
the Internet
Volleyball
by Nancy Helms, Wake
Forest University, 1998


Volleyball. Lesson 1:
Background:
- Hit: Player makes a onehanded play on the ball striking it in
a downward motion to send it over the net
- Kill: A hit that is unsuccessfully fielded by the defending
team. It cannot be returned.
- Dig: A successfully fielded hit by a certain defender.
- Assist: A bump or a set to a hitter that results in a kill.
Activity: Percentages and Statistics
with Clemson Volleyball
- Objective: To develop a simple formula for Percent and
to be able to manipulate that formula to find percentages, parts, and totals
involved.
- Necessary URL: http://www.fansonly.com/schools/cl…-rel/clem-w-volley-spec-rel07.html
(Clemson Women’s Volleyball homepage)
- I. Students find Clemson Women’s Volleyball homepage
and use the information on the six starters to learn about percentages
- II. Students discover formula using a percentage that
has already been worked out for them.
- III. Students test discovered formula and check with
neighboring group/pair
- IV. Students manipulate equation to find percentage,
total, etc.
- Formula for Percent: Part / Whole = Percent
/ 100 Or Part / Whole* 100 = %
Locate the Clemson Women’s
Volleyball homepage at:
http://www.fansonly.com/schools/cl…-rel/clem-w-volley-spec-rel07.html
- Look at Cindy Stern’s statistics on page 3. She is second on Clemson’s
team in kills, hitting % and attempts. Taking into account that a kill
is a successful attempt at a hit, what type of relationship can you find
between kills and attemps that gives you her correct hitting % of .327?
Write your answer out in words and as a formula.
- Pair up with the couple beside you and compare formulas. If they are
different, then decide on a common formula to use to calculate percentages.
Then test your formula by looking at Stephanie Schultz’s biography. If
she attempted 498 hits and had 174 kills, what was her hitting %? Check
your results with the information on her hitting percentage in her biographical
sketch.
- Skye Frost leads the team in digs with 206. If she has 12% of the total
team digs, how many digs has the entire team had thus far in the season?
- Together, the top five defenders on Clemson’s team have accumulated
824 digs. What % of those total digs do Skye Frost, Jill Heavey, and Michelle
Thieke hold?
- As of October 7th, Michelle Thieke had attempted 413 hits.
On October 10, she has 6 kills and 17 attempts versus UNC. On October 11,
she has 9 kills out of 20 attempts versus NC State. What is her hitting
percentage after the October 11 game?

Volleyball. Lesson 2:
Background:
- Hit: Player makes a onehanded play on the ball striking it in
a downward motion to send it over the net
- Kill: A hit that is unsuccessfully fielded by the defending
team. It cannot be returned.
- Dig: A successfully fielded hit by a certain defender.
- Assist: A bump or a set to a hitter that results in a kill.
Activity: Averages and Comparisons
http://www.usctrojans.fansonly.com/sports/w-volley/usc-w-volley-frame.html
- I. Have students familiarize themselves with vocabulary
and stats formulas
- II. Work through simple calculations with the formulas
- III. Apply what they have learned to find player and
team highs and lows and to compare those
- IV. Go to local volleyball game and take stats- compute
attack %, Total attempts, and assist %
Locate the following Volleyball
homepage:
http://www.volleyball.org/stats.html
Take a few minutes to look over the volleyball stats with your partner.
In particular, look at the Assist, Ace and Block Average formula. Now,
Locate the USC Women’s Volleyball team statistics at:
http://www.usctrojans.fansonly.com/sports/w-volley/usc-w-volley-frame.html
- Look under the serve statistics for the Trojans. Where does the Aces/Game
stat come from? What does this stat mean in words?
- In the upcoming game against Stanford, how many Aces would you expect
the Trojans to have? How did you come up with that answer?
- How would you figure out who is the best server on a Volleyball team?
Who (statistically speaking) is the best server for USC in your opinion?
State several reasons how you came to this conclusion.
- Which member of the Lady Trojans had the highest Block Average on the
Team? What was her Block Average? How did you figure this out?
- Compare the Assist Average of Janice Mounts and Jasmina Marinkovic.Whose
is higher? Based on what you know about the game of Volleyball so far,
why do you think one of them has a higher average than the other? Compare
their kill averages. Whose is higher and why? (Show all calculations and
justify each answer).

Volleyball. Lesson 3:
Perimeter, Area, and Volume
- Objective: to learn to use correctly calculate Perimeter,
Area, and Volume to solve practical problems
- Necessary URL: http://www.volleyballmag.com/aug95/court1.htm
- I. Have students read through webpage on the dimensions
of a volleyball court
- II. Use Perimeter and Area of a square as well as Volume
of a cube in building an outdoor volleyball court
- III. Have students figure out and understand which formulas
to use with which questions
Find the article on the basics dimensions of a Volleyball court and
how to build an outdoor court at:
http://www.volleyballmag.com/aug95/court1.htm
and
http://www.volleyballmag.com/aug95/court2.htm
Read through the basics of the Volleyball Court dimensions and the step
by step description of how to build your own outdoor court.
- Draw a diagram of the court itself and the playing space. What is the
area of the total playing area in square feet? What is the area of the
court itself in square feet? What is the area of just the extra playing
area outside of the court in square feet? (Hint: the area of a square is
(length*width)
- Looking at the fourth bulleted paragraph, describe how you would find
the volume of soil removed from a court excavated in an area comfortably
above sea level.
- Take a look at the diagram with the step by step description of building
an outdoor court. If you were planning on making a court in your neighborhood,
what volume of sand and of gravel would you need to buy in order to fill
the court with a one foot layer of gravel and then a two foot layer of
sand as described by the picture?
- If you were planning on marking off the entire playing area with railroad
ties, how many feet of railroad ties would you need to buy? Justify your
answer by showing your work and using words.
- Describe the steps that you would use to find the Perimeter of the
volleyball court itself so that you could mark it off with string.
