Math Forum: Technology Problems of the Week

Challenging problems based on our Problems of the Week that take advantage of interactive
math tools

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What is a Technology PoW?
Technology Problems of the Week (tPoWs) are problem-solving challenges modeled on our Problems of the Week that take advantage of interactive mathematics tools such as Java applets, Geometer's Sketchpad, Fathom, or spreadsheets. Students are invited to use the link "Submit your answer" to share their solutions, and then "self-mentor" using specially designed hints, checks, and suggestions for extensions.

A Million Penny Project Students use a spreadsheet to show when they will have collected their million pennies. [spreadsheet]	en español: El Proyecto de un Millón de Centavos
Balloon Booths Scale the size of a hot air balloon so you can make it fit through a narrow passage and hit a nail to pop it. [Java applet]	Puesto de Globos
Counterfeit Coins Find the fewest number of weighings that will identify which of the nine coins is counterfeit. [Java applet]	Monedas Falsas
Galactic Exchange II By using the vending machine to buy food, determine the relative values of the coins. [Java applet]	Intercambio Galáctico II
How Many Cubes? Given the front view and side view of some cubes, students are asked what the larget number of cubes can be used to make the arrangement and what the smallest number of cubes would be. [Java applet]	¿Cuántos Cubos?
Mauna Loa Using the monthly measurement data for 1975 through 1988 from Mauna Loa, predict the CO₂ level for your birthday in the current year. [Fathom™ or spreadsheet]	Mauna Loa
Miranda and the Rookie Use a spreadsheet to compare salaries of the star basketball player and the rookie. [spreadsheet]	Miranda y el Principiante
Runners Tell how a runner's step size predicts the time it takes to run from the building to the tree. [Java applet]	Corredor
Squares in a Square If you have a checkerboard that is 50x50 with small squares inside it, how many squares will there be all together? [Java applet]	Cuadros en un Cuadro
Traffic Jam Find the fewest number of moves for the ten people to end up on the opposite side from where they started. [Java applet]	Tráfico Apretado
Types of Triangles Students use a GSP sketch or an interactive web page to drag and manipulate four triangles. They identify one of each type: scalene, isosceles, equilateral, and right. [The Geometer's Sketchpad®]	Tipos de Triángulos

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