 The Elverson Puzzle Co., Inc.
The creators of Jacob's Revenge, the classic wine bottle puzzle. Elverson Puzzle also makes a Tangram Puzzle, the eleven tiles of which form a 6 inch diameter circle; Farkle, a game played with extra large wooden dice or online, with the dice roller that
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 Emaths.Info  Vinod Sebastian
Math tools, formulas, tutorials, videos, tables, and "curios," such as the unusual properties of 153, 1729, and 2519. See in particular Emaths' interactive games, which include the N queens problem, Towers of Hanoi, and partition magic, which finds a
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 emGames  Wright Group/McGrawHill
Twelve Shockwave games aligned to the Everyday Math curriculum for the early grades. Game topics include the basic operations (including angle addition), place value, money, estimation, factoring, and choosing the larger of two numbers. Many games involve
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 Equate: The Equation Thinking Game  Conceptual Math Media, Inc.
Have fun creating equations crosswordstyle. An arithmetic version of Scrabble, Equate is a math board game for family and classroom. Earn higher scores by using division or fraction tiles, or by playing tiles on premium board positions that double or
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 Equivalent Fractions (SMILE)  Flora Williams, O. A. Thorp School
A lesson designed to teach students to recognize fractions of equal value and that name the same amount (number). From the Arithmetic section of a collection of almost 200 single concept lessons by the Science and Mathematics Initiative for Learning Enhancement.
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 Eric's Treasure Trove of Life  Eric Weisstein
A description of John Conway's Game of Life, with a searchable database of definitions and animated examples of possible patterns.
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 Esso Family Math Project  Barry Onslow, Judi Waters, Nancy Chapple, Linda Adams, et al.
A communitybased program for families that uses everyday materials and math games to help children understand math ideas. Concepts used in the real world  such as measurement, estimation, and mental math  are sometimes difficult for
children to
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 Estimating and Counting Money (SMILE)  Omega L. MinorClark, R. Nathaniel Dett Elementary School
A lesson designed to review estimating and rounding to the nearest dollar; teach skills and practice in counting money; and give students experience in estimating sums and products. From the Practical and Applied Math section of a collection of almost
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 Factors (SMILE)  Edwina R. Justice, Gunsaulus Scholastic Academy
A lesson for grades 57 designed to teach students to find and record groups formed by using pennies; define factor, product, prime, and composite; write related number sentences; find the factors of whole numbers; classify numbers as prime or composite;
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 Fair Play and Dreidel  Ivars Peterson (MathLand)
For centuries, Jews have played the game of dreidel as part of the festivities associated with Hanukkah. Surprisingly, it turns out that this ancient game is also an unfair game. In 1976, Robert Feinerman of Herbert H. Lehman College (CUNY) in Bronx,
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 Fantasy Stock Market Game  Young Money Magazine
Students invest $10,000 in "fantasy" cash and compete against other students to build an investing portfolio. Game is free with free web site signup, contests run for 30 days and for each period an investor starter kit is awarded to the top player, plus
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 Farmer and Wife to Catch Rooster and Hen: Sam Loyd's Puzzle  Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
An entertaining Java implementation of a puzzle by Sam Loyd. A farmer and his wife try to catch a hen and a rooster. A good exercise in taxicab geometry.
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 Figure Five Frenzy  ridiculopathy.com
Create an arithmetic expression equal to the target number using the four basic operations, grouping parentheses, and the five number cards dealt to you. Play in arcade (against a timer), multiplayer, or solitaire modes. Requires the Flash plugin.
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 First Grade (AAA Math)  John Banfill
Interactive math exercises, lessons, and games covering basic arithmetic concepts and methods, for first grade.
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 Fit Brains Brain Games  Vivity Labs, Inc.
Fit Brains offers games to improve your brain health. Free registration required.
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 Flash Pegs  CleverMedia
Jump a peg over its adjacent neighbors to eliminate them until only one remains in this online version of the classic logic puzzle. Choose from nine starting configurations. Requires the Flash plugin.
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 FractImage  David Rose
Preview jigsaw puzzle images that exhibit selfsimilarity, and purchase the puzzles online. Visit the fractal gallery; read about fractals and FractImage; and download fractal wallpaper for your desktop.
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 Fraperdec* (SMILE)  Connie Taylor, Holy Angels School
A lesson that uses playing cards to enrich and develop skills in conversion and sequencing of fractions, decimals and percentages, both in each individual set and in cross sets. From the Recreational and Creative Math section of a collection of almost
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 Freaky B's Disc Golf  ridiculopathy.com
Fling a virtual frisbee through an eighteenbucket disc golf course subject to wind and collision effects. Requires the Flash plugin.
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 Freaky Links  Cut the Knot!, Alexander Bogomolny with William A. McWorter Jr.
Mathematics impinges on itself and the sciences in unexpected and bizarre ways. This page is a small illustration of this phenomenon, taking up recreational mathematics and the game of Chinese checkers, the strategy game called Hex, quasigroups, and block
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 Free Daily Sudoku Puzzles
For this canonical puzzle the aim is to fill every square in the 9x9 grid with a number 19. Every row, every column, and every 3x3 box must contain the digits 1 through 9. Free Daily Sudoku has online puzzles and daily puzzles by email or RSS feed. Also
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 Free Math Flashcards, Math Resources, and Math Games  Linda Blumenthal, Thinkwell Corp., NY
Free math resources and educational games, including talking math flashcards. Learn math using a multisensory approach.
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 Free Math Help  Ted Wilcox
Free tutorials, glossary, study tips, calculator advice, and more, including annotated links to other resources.
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 Free Puzzles  Jimmie Dean
A collection of puzzles and brainteasers, divided into geometry, logic, math, weight, moves, and miscellaneous. Each puzzle includes a hint, and solutions are available through email. Online games and puzzles include a chess knight game and Hangman.
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 The Fruit Game
An interactive game in which players take turns removing fruit from the table according to the rules. The player who removes the last fruit from the table loses. Based on the mathematical puzzler known as the game of Nim.
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 Fun 4 the Brain  Natasha Oliver
Flash games in addition (snowy fun and farm freakout), subtraction (color your vacation and "Can You Dig it?"), multiplication (ping pong the panda and granny prix), and division (Peabody the Penguin, and Sketch), with selfgrading timed quizzes in some
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 Fun and Games in Nevada  Ivars Peterson (Mathland)
...in the hotel's casino, the sights and sounds were... the glare of neon lights, the jangle of coins erupting from slot machines, the clink of chips at blackjack tables, and the mutter of avid gamblers testing their luck. It was the middle of April,
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 FUNBRAIN: Educational, Online Games for Kids  The Learning Network
Interactive, educational math games for kids and children of all ages. Games include Math Baseball and Power Football (test your arithmetic at four possible levels), and Change Maker (run a cash register), as well as Fun Match (a memory game for fractions
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 Fun Math for Kids from Big Learning  Dr. Karen A. Cole
Realworld applications for elementary school kidsespecially designed for parents and kids to explore together. Also great for classroom warmup activities.
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 funschool.com
A site the goal of which is to make learning fun, and to communicate educational concepts in an effective manner, offering over 700 educational games and activities, many of them mathrelated. See also funschool's sister site, http://www.kaboose.com/.
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 Gadgets  Jan Gombert
Gombert's five "gadgets" provide simple challenges that combine addition, multiplication, and two or threedimensional geometry. Balancing Act shows three values on a beam to balance by addition. Make a given perimeter or area by resizing the figure
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 Game Cafe (GirlTech)  Radica Games, Ltd.
Games for kids to print out and play offline. Amazing Math Path explores the world through numbers: Letter Logic (find a path to link the letters); Sum it Up (how much does your name cost?); A Colorful Survey (compare your color preferences to those of
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 Gamelan  The Official Java Directory  EarthWeb, Inc.
Gamelan's primary mission is to serve as a central registry and directory of Java resources. Much like Yahoo!, Gamelan collects links to resources stored on other sites across the Web. However, unlike Yahoo!, Gamelan's mission is specific  Gamelan collects
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 The Game of Chaos  Juergen Giesen
This applet performs the following game at varying speeds: Choose a random starting point (o) within the triangle ABC. Roll a die. Connect the point with point A, when you roll 1 or 2; with point B, when you roll 3 or 4; with point C, when you roll 5
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 The Game of Life: (Serendip: Complex Systems)  Bryn Mawr College
Order without a planner: play a Java game about a world consisting of locations that may or may not be occupied by life. At each step, life persists in any location where it is also present in two or three of the eight neighboring locations, and otherwise
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 The Game of Nim Explained  Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
A Java simulation of the famous game, with a theoretical explanation and extension to other similar games: see also similar Java games: Nimble, Northcott's game, Plainim, the Scoring game, and Turning Turtles.
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 gamepuzzles: for the joy of thinking  Kadon Enterprises, Inc.
Board games and the like: Combinatorial puzzles, tessellations, math manipulatives for all grades. Handson sets and some online exemplars of polyominoes, polyforms, color tilings. Source for classics like Archimedes' Square (Stomachion), Penrose tiles,
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 Games2Learn
Vendor of educational games, software, and activities for both parents and teachers. The site may be searched by category (Math, Spatial Learning, Science and Tech, etc.), grade level, game type, or personality profile (Planner, Peacekeeper, Producer,
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 Games for the Brain  Philipp Lenssen
Race the "IQ Score" clock while playing JavaScript brain teasers such as NumberCruncher (perform arithmetic calculations following order of operations) and Marsmoney (calculate the values of different currencies). The site also features several memory,
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 GAMES Group  The University of Alberta
GAMES is a research group for Gameplaying, Analytical methods, Minimax search and Empirical Studies. It produces realtime programs for strategic game such as Amazons, Awari, Checkers, Chess, Domineering, Go, Hex, Lines of Action, Othello, Poker, RoShamBo,
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 Games Mathematicians Play  Gregory McColm; Dept. of Mathematics, Univ. of South Florida
Mathematical games from a logical point of view: strategies for games and using games in descriptive complexity. Contents include Bisimulation; Foundations; Game Theoretic Semantics; and Guarded Quantifiers. With an outline of the problem of what it means
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 Games on Graphs (MegaMath)  Nancy Casey; Los Alamos National Laboratory
Students use algebraic methods to explore, model, and describe patterns and functions involving numbers, shapes, data, and graphs in problemsolving situations and communicate the reasoning used in solving these problems. Graphs, stories and games provide
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 Games Using Multiplication (SMILE)  Amaechi Onyeali, Carter Elementary School
A lesson for the elementary grades in which students play two games to reinforce their multiplication facts and their addition skills. From the Recreational and Creative Math section of a collection of almost 200 single concept lessons by the Science
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 GenkiMaths.com  Richard Graham
Popular classroom games used in Japan for teaching language skills, but "remixed" to be of use to math teachers.
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 Geometric Bingo (SMILE)  Anne Lawrence, Wells Community Academy
A lesson for grades 710 designed to teach students to name and identify 20 geometric shapes. From the Recreational and Creative Math section of a collection of almost 200 single concept lessons by the Science and Mathematics Initiative for Learning Enhancement.
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 Geometric designs in the game of Life (SMILE)  Willaim Byrne, Martin Luther King High School
A lesson designed to predict and discover patterns generated in the game of "Life," using large checkerboards and checkers or flat counters. From the Recreational and Creative Math section of a collection of almost 200 single concept lessons by the Science
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 Geometry  Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
More than 95 games or puzzles having to do with geometry, chaos, fractals, and topology with extensive discussions and solutions. Most require a browser capable of displaying JavaScript or Java.
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 Getsmarter.org  Council on Competitiveness
A free web site designed to help improve math and science education. Interactive quizzes, games, and tutorials allow students to learn more about specific topics and improve their skills. MSTV, a series of interactive modules, shows how math and science
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 Giggle Learn: Addition and Subtraction Math Fact Games  Laurie Laurendeau, Giggle Learn LLC
"Giggle Facts" is a collection of 50 fun games to teach children addition and subtraction math facts, entirely through board games, games with dice, dominoes, and playing cards. The facts are introduced in a stepbystep manner, along with specific strategies
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 Go Directly to JAIL!  Andrew Pinzler
The longterm probabilities in the Parker Brothers game Monopoly: an exploration into which Monopoly game board properties are occupied more frequently than others. Developed from a high school science project, this site is organized as a lab writeup.
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