 Dot.com Derby  Terry Trotter
Algebra, difficulty level 2. Three "dots" run a race around a circular track in an unusual manner. You must determine the winners in two categories.
...more>>
 Driving to Work  Annie Fetter
Algebra, difficulty level 2. Tracey drives to work at 40 mph and is 1 minute late. If she leaves at the same time and drives 45 mph, she'll be 1 minute early. How far does Tracey live from work?
...more>>
 Ducky Promenade  Leon Roland & class (poetry by Annie Fetter)
PreAlgebra, difficulty level 3. Find the weight of a duckling and two ducks after reading this poem.
...more>>
 Eduardo's Equations  Steve Risberg Annie Fetter
Algebra, difficulty level 1. Find all possible integer solutions to a system of four equations in
two variables.
...more>>
 Escalation  Melissa Kennedy
Algebra, difficulty level 2. A rate, time, distance problem that involves finding the number of steps on an escalator.
...more>>
 The EV Function  Terry Trotter
Algebra, difficulty level 2. Given a function's definition, find the input (argument) value that yields a certain output value.
...more>>
 Explaining a Number Trick  Annie Fetter
Algebra, difficulty level 1. Use a variable to explain how this number trick works.
...more>>
 Family Fun  Molly Stanley and Steve Risberg
Algebra, difficulty level 3. The Gonzalez family is competing in a relay race where each family
member runs one lap. How long did it take Vicenta to run hers?
...more>>
 Filling Glasses  Annie Fetter
Algebra, difficulty level 2. Match up each of the three glasses with the graph that best describes the height of the water in the glass over time, when the glass is filled with water at a constant rate.
...more>>
 Filling the Aquarium  Terry Trotter
Algebra, difficulty level 2. A workman at a zoo has to clean an aquarium, but forgets to do an important task, thus causing a problem (for us).
...more>>
 Finding a Supplement  Terry Trotter & Annie Fetter
Geometry, difficulty level 1. Two lines, AB and CD, intersect at point E. Angles AED and CEB have measures that can be expressed as 2x^2 + 3x + 15 and 3x^2 + x  20. Find all of the possible measures of angle BED.
...more>>
 Flatland Soldiers  Terry Trotter
Algebra, difficulty level 1. Find the size of the vertex angle of a soldier in the world of Flatland, a famous book by Edwin A. Abbott.
...more>>
 Football Figures  Judy Ann Brown
Middle School, difficulty level 2. This year we have already won as many games as we lost last year. How many games will the team play this year?
...more>>
 Fording the River  Lisa and Judy Gardner
Algebra, difficulty level 2. A terrible accident occurred just when the hands of a watch were in a special position. What time was it?
...more>>
 The Forever Green Nursery  Leigh Nataro
Discrete Math, difficulty level 3. Does the number of trees in a nursery increase, decrease, or stabilize?
...more>>
 Four Men and Some Money  Daboll
Algebra, difficulty level 1. Four men (A, B, C, & D) are splitting up a quantity of money ($100), and need your help to do it.
...more>>
 The Fourth of July Parade  Ethel Breuche
Discrete Math, difficulty level 3. After the parade, the people on the float I was on shook hands with each other. The Mayor came over and shook hands with only the people he knew. How many people did he know if there were 1625 handshakes altogether?
...more>>
 Fraction Action!  Steve Risberg
Algebra, difficulty level 2. What happens when you add the denominator to both the numerator and denominator of a fraction?
...more>>
 The Function Challenge  Bill Graham
Algebra, difficulty level 2. Arrange a series of functions in the order that will produce the largest output.
...more>>
 Funny Ducks  Ethel Breuche
Algebra, difficulty level 4. These funny ducks always walk exactly three feet from the lily pond. What is the area of the region bounded by their path?
...more>>
 Generosity  Ethel Breuche
Algebra, difficulty level 2. Three generous friends, each with some cash, redistribute their money.
...more>>
 Geometric Algebra?  Annie Fetter
Geometry, difficulty level 2. Given a geometric picture that illustrates the fact that a(a+b)=a^2+ab, explain what the second picture illustrates.
...more>>
 Georg Tricks the Troll  Terry Trotter
Elementary, difficulty level 3. Georg decides to tangle with the troll and see if he can make some money.
...more>>
 Going for the Gold  Terry Trotter
Algebra, difficulty level 4. Find the number of points that are awarded for each gold, silver, and bronze medal in an athletic competition.
...more>>
 Grandmother's Birthday Party  Judy Ann Brown
Middle School, difficulty level 1. Alice and Jessica are writing invitations for a surprise birthday party for their grandmother. Determine how many invitations they have written?
...more>>
 Grandpa Jones' Age  Terry Trotter
Algebra, difficulty level 2. Little George asks how old his grandpa is, and needs your help to find out the answer.
...more>>
 The Great Doughnut Caper  Terry Trotter
Algebra, difficulty level 2. After a number of doughnuts have been switched in their respective boxes, you are to discover the original state of things before the change was made.
...more>>
 The Great One  Terry Trotter
Algebra, difficulty level 2. Indiana Jones found a math problem about the life span of "The Great One" engraved on an old tombstone. How old was the Great One when he died?
...more>>
 Gumballs Galore!  Terry Trotter
Algebra, difficulty level 2. Two famous characters from literature go on a gumball shopping spree.
...more>>
 Halloween Night  Ethel Breuche
Algebra, difficulty level 1. One hundred candy kisses were being distributed, one at a time, to five goblins at my door. The phone rang, and when I came back I didn't remember where I had left off. How did I continue distributing without
starting
...more>>
 He Shoots! He Scores!  Annie Fetter, Steve Risberg, & Terry Trotter
Algebra, difficulty level 3. Given a set of equations and inequalities, figure out how many points Bo might have scored in his basketball game.
...more>>
 Hiking Mount Hood  PoW staff
Algebra, difficulty level 1. Don hikes up and down a mountain at various speeds. Choose the graph
that best represents his trip.
...more>>
 HomeMade Valentine Card  Terry Trotter
Algebra, difficulty level 2. Reuben expresses his affection for his girlfriend by making his own Valentine's Day card, described mathematically.
...more>>
 How Far in Space?  Suzanne Alejandre
PreAlgebra, difficulty level 1. By the time the Space Shuttle Discovery had undocked from it in
August, 2005, how far
had the International Space Station traveled while orbiting the Earth?
...more>>
 How High Is Enough?  Terry Trotter
Algebra, difficulty level 3. A right triangle is formed by stretching flexible elastic "legs" sufficiently high. How high must that be?
...more>>
 Humphrey's Great Escape  Bill Graham
Algebra, difficulty level 3. Calculate Humphrey's running speed as he tries to outrun a train across a trestle.
...more>>
 Humphrey's Phone Number  Bill Graham
Algebra, difficulty level 3. Figure out Humphrey's 10digit phone number given various clues about the divisibility of parts of his number.
...more>>
 Idle Ivan and the Troll  Lisa Lavelle
Elementary, difficulty level 2. Idle Ivan makes a deal with a troll... to his disappointment he discovers he knows less math than he thought.
...more>>
 Illuminating Lines  Annie Fetter
Algebra, difficulty level 2. Match up statements, equations, and sets of points on coordinate planes.
...more>>
 Integer Game  Suzanne Alejandre
PreAlgebra, difficulty level 1. Help Alisa pick a set of six cards to win the Integer Game.
...more>>
 Integer Images  Suzanne Alejandre
PreAlgebra, difficulty level 2. Use the four equations to figure out which integers the quadrilateral
and the circle
represent.
...more>>
 It's the Law!  Terry Trotter
Algebra, difficulty level 3. Explain the two most important laws of exponents, as a good teacher or book might do.
...more>>
 Jack and Jill Go Jogging  Terry Trotter
Algebra, difficulty level 2. Two famous Mother Goose characters take up aerobics, running at some numerical speeds while exercising. How fast can each one jog?
...more>>
 Jimmy's Hits  Terry Trotter & Annie Fetter
Algebra, difficulty level 2. Given information about how many doubles, homers, and singles, figure out how many total hits Jimmy had during his recordbreaking season.
...more>>
 The Joke  Steve Risberg
Algebra, difficulty level 1. A joke circulates the Internet via email, with each recipient
forwarding it on to 8 friends. Find a formula to represent the number
of emails sent out at any stage of the forwarding, and use your
formula to answer some
...more>>
 Judy and Jen's Garden Problem  Terry Trotter
Algebra, difficulty level 2. Judy and her daughter Jen make up math problems while working in their vegetable garden.
...more>>
 Kristina's Code  Suzanne Alejandre & Steve Weimar
Algebra, difficulty level 1. Use the four equations that Kristina wrote to figure out her two unknown numbers.
...more>>
 Lemonade Fun  Maria Fung and her students
PreAlgebra, difficulty level 2. How many cups of each size lemonade did Jose and Nick sell?
...more>>
 The Length of Larry's Rectangle  Larry Sue
Algebra, difficulty level 2. Larry wants to know the length of his rectangle. Can you help him?
...more>>
 Lettuce for Sale  Ethel Breuche
Algebra, difficulty level 1. Using a linear equation, determine the number of heads of lettuce sold on Monday.
...more>>
 
