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Interactive
National Council of Teachers of Mathematics

Nctm: Illuminations: Codes

For Students 9th - 10th
This is a computer based program that allows students to understand basic cryptography which utilizes transformations of shifting and stretching. Students may encode their own message and see it graphically.
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Activity
Other

The Mathematics of Power (Weighted Voting) [Pdf]

For Students 9th - 10th
A 12-page student handout of exercises on weighted voting. Questions address notation, quotas, issues, types of voter power, the Banzhaf power index, and the Shapley-Shubik power index.
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eBook
Colorado State University

Writing@csu Writing Guide: Generalizability and Transferability

For Students 9th - 10th Standards
This online text explains what generalizability and transferability are and their importance in research methodology. Their applications in different types of experimental contexts and designs are also explored.
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PPT
Columbia University

University of Michigan: Generalizing From Sample to Population [Pdf]

For Students 9th - 10th
This is a slideshow presentation that offers many examples of statistical studies where generalizations to the larger population were made, often leading to incorrect assumptions. While the author's commentary has been omitted, there are...
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Handout
Indiana University

Indiana University Northwest: Weighted Voting

For Students 9th - 10th
Explains how a weighted voting system works and provides examples for Canada, the European Economic Community, Nassau County in New York, the United Nations Security Council, and more. The Banzhaf index of power and the Shapley-Shubik...
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Handout
Paul Dawkins

Paul's Online Notes: Algebra: Applications

For Students 9th - 10th
Provides examples of applications of exponential functions involving compound interest and exponential growth and decay, and an example of an application of a logarithm involving earthquake intensity.
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Graphic
Other

Us Government: Fed Stats

For Students 9th - 10th
This site shows charts, graphs, and information from more than 70 agencies in the United States Federal Government that produce statistics of interest to the public.
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Handout
Other

Fas: Strategic Assessment: The Internet

For Students 9th - 10th
A strategic assessment of the role that the Internet is playing in the political process of America. The article looks at trends and makes predictions. Although geared toward the Department of Defense, the article is very comprehensible...
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Website
Cengage Learning

Brooks/cole: Real World Mathematics

For Students 9th - 10th
This page describes different types of applications in which different forms of Math can be used. Scroll down near the bottom of the page to read about how differential equations can be used in solving real world problems.
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Handout
Georgia State University

Georgia State University: Hyper Physics: Laws of Sines and Cosines

For Students 9th - 10th Standards
At the bottom of this page from the Georgia State University, you will two real-world applications of the Laws of Sines and Cosines (in the context of velocity vectors.)
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Website
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Parabola Problems

For Students 9th - 10th
Dr. Math tackles a problem about culverts. This is in response to question posed by a student.
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Website
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Parabolic Equation of an Arch

For Students 9th - 10th
A student, in writing to Dr. Math, wants to know how to find the equation of the parabola of McDonald's arches. Dr. Math helps the student get started with the problem.
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Activity
Wolfram Research

Wolfram Science World: Cl Circuit

For Students 9th - 10th
Shows how simple harmonic motion is used in a circuit comprised of an inductor and a capacitor. Includes detailed formula derivation utilizing calculus.
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Handout
University of Michigan

University of Michigan: The Mathematics of Basic Pumping Well Hydraulics

For Students 9th - 10th
Discusses the mathematics involved in basic pumping well hydraulics. Includes a section dealing with the steady state solution.
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Activity
Texas Instruments

Texas Instruments: Numb3 Rs: Pile It On

For Teachers 9th - 10th
Based off of the hit television show NUMB3RS, this lesson focuses on the age-old problem of whether to accept a large sum of money, or to accept a proposition in which a chessboard is filled with grain (each square getting double the...
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Activity
Texas Instruments

Texas Instruments: Numb3 Rs: Cycloid Ii

For Teachers 9th - 10th
Based off of the hit television show NUMB3RS, this lesson provides an introduction to the integral in the sense of finding the length of a curve. In the lesson, student deconstruct a cycloid (formed by following a piece of tape on the...
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Activity
Texas Instruments

Texas Instruments: Numb3 Rs: I, It, Itera, Iteration

For Teachers 9th - 10th
Based off of the hit television show NUMB3RS, this lesson introduces students to the notion of Brownian motion and has students graph a sample Brownian particle. In Brownian motion, each "step" depends on the "steps" taken previously,...
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Activity
Texas Instruments

Texas Instruments: Functions and Their Extrema

For Teachers 9th - 10th
Model the trajectory of the longest home run ever hit while studying extrema of functions on the TI-89. Another real-world problem in this activity involves minimizing the amount of tin used in a cylindrical tank. Following the worked...
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Activity
Texas Instruments

Texas Instruments: Numb3 Rs of the I Ching

For Teachers 9th - 10th
This activity was developed to be used in conjunction with the NUMB3RS episode "Undercurrent," in which a victim is found with a Chinese hexagram tattoo. Students will learn about trigrams and hexagrams, Chinese characters made from...
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Activity
Texas Instruments

Texas Instruments: Numb3 Rs: How Hard Can It Be?

For Teachers 9th - 10th
Based off of the hit television show NUMB3RS, this lesson introduces students to one way of defining the strength of an encryption (called "Entropy"). In the lesson, students learn how to calculate the entropy of a given code, and then...
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Activity
Texas Instruments

Texas Instruments: Math Today: Humidity Makes Air Feel Hotter Iii

For Teachers 9th - 10th
Investigate the relationship among humidity, air temperature, and the heat index while learning about modeling data, evaluating functions, and describing the end behavior of a function. Students will use graphing calculator technology to...
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Activity
Texas Instruments

Texas Instruments: Numb3 Rs: Fresh Air and Parabolas

For Teachers 9th - 10th
Based off of the hit television show NUMB3RS, this lesson examines a plane crash, and gets students to try to find the location of various pieces of wreckage. This is done using parametric equations which form a parabolic trajectory....
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Activity
Texas Instruments

Texas Instruments: Numb3 Rs: Stick or Switch

For Teachers 9th - 10th
Based off of the hit television show NUMB3RS, this lesson creates a simulation of the famous "Monty Hall Problem" (also known as the Three Doors Dilemma). In the simulation, students discover whether making certain decisions increase or...
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Activity
Texas Instruments

Texas Instruments: Numb3 Rs: Where's Cheetah?

For Teachers 9th - 10th
Based off of the hit television show NUMB3RS, this lesson has students set up a search region for a yacht that sank into the ocean. Using cylindrical coordinates and a little trigonometry, students are able to block off a certain portion...