 CASTLE Software
Computer Assisted Student Tutorial Learning Environment (CASTLE) software for Windows, for high school science, social studies, and mathematics  algebra, geometry (including probability), and trigonometry. Includes a tutorial program for student review,
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 The Center for Game Science
Makers of free online fraction games such as Treefrog Treasure, Refraction, and Creature Capture. The Center for Game Science also offers its research publications on science, technology, engineering, and math (STEM) games for scientific discovery; for
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 Children's Software Revue
A magazine that features reviews of educational software. The website has a database of children's software that may be searched by title, rating, grade level, copyright date, publisher, platform, or the subject that it teaches. Reviews can be submitted
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 ChiPrime
From the makers of the Android apps Grade School Math X and High School Math Challenge: autoscoring quizzes comparable to the quantitative section of the SATs, GREs, and GMATs; notes on logarithms, algebraic identities, exponents, quadratic equations,
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 Circular Reasoning  TJ Leone, Leone Learning Systems, Inc.
A free, Javabased software tool for thinking about circles, sectors, segments, and angles. Based on Montessori principles of learning through the manipulation of objects. Activity cards included. For Windows computers only. Includes ideas and stories
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 Class Champ multiplication & division
Software intended to help children learn the times table by heart using Pop Times Table songs; show how multiplication works by displaying the question graphically; and quicken the child's ability to recall answers and allow the child to practice questions.
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 ClassK12.com  LogTera
Online adaptive math apps designed for distributed practice. Aligned to the Common Core State Standards (CCSS), ClassK12's K5 gamebased interactive environment and visual models reward students with points and badges. Freely access worksheets and practice
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 CMP Software  Connected Mathematics Project, Michigan State University
Downloadable software designed to accompany CMP units. For the Factor Game winning strategies involve distinguishing between numbers with many factors and numbers with few factors; students analyze game strategies and are introduced to the definitions
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 Coastal Computer Company
An educational software company. Math titles, AlgebraMAKER and MathMAKER, drill students in basic skills, explaining the solution to each problem. Samples of these programs are available for download.
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 Colorful Mathematics  Claude Laflamme
An educational software series presenting advanced mathematical concepts to K12 students in a gameoriented approach. The five games offered use simple coloring and/or drawing techniques to illustrate mathematical concepts from graph theory. Downloadable
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 Computer Solution Central
Shareware games for Windows machines and PDAs. Includes a free solitaire game, educational games focusing on addition and multiplication, and a date calculator.
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 Conceptual Math Media, Inc.
Math educational products for both the classroom and family. Master multiplication facts and divisibility rules with PrimePak playing cards; create equations crosswordstyle with the Equate board game, also available via email. Order products online
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 Counting to Calculus: Mathematics  William K. Bradford Publishing Co.
Math software, printed supplements, workbooks, textbooks, posters, and teacher tools available for Elementary, Middle and Secondary math curriculum.
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 Critical Thinking Books and Software
Critical thinking books and software for home and classroom for use in mathematics, science, language arts, social studies, and more. Search for Content Area Mathematics from the classroom catalog or the home catalog.
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 Cross Number Puzzles  Rainer Typke
Cross number puzzles to solve online; log in to create your own. Also known as crossfigure, figure logic, or numberlock puzzles, cross number puzzles require numbers instead of words to complete a crosswordlike grid.
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 CueThink
Makers of social, collaborative, interactive learning environments such as CueThink, a peertopeer iPad application for grades K12.
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 The Curious Creative: Maths  Tom Barrett
Blog by a former teacher and ICT Subject Leader. Barrett's math posts, which date to back to July, 2006, have included "Addressing the Balance: Multiflyer Times Tables Challenge," "Using Nintendo Wii Sports for Addition and Subtraction," "My Maths Lesson
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 Curry K. Software  Curry Kenworthy
Shareware for Education and Productivity: Pillbug Golf (Mac  learn about points, slopes, and angles while you putt); Snakey Math (Mac  the basic operations, arcade style); Galactic Geometry 3D (Windows  calculate volume and surface area of 3D objects
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 DareWare: Educational, Multimedia and Java Games
Educational games and multimedia products (free demo versions downloadable), Java games, "This Week in U.S. History", and a brief list of other shareware sites.
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 Data Description, Inc.
Makers of data analysis software and computerbased training packages. The data analysis software is designed for data visualization, data mining, and statistical analysis; the computerbased training packages are selfpaced, multimedia training courses
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 Data Games  KCP Technologies
As students play Data Games, they generate data that they must analyze to win the games. Supporting materials include a student worksheet; teacher guidelines that correlate the activity to the Common Core State Standards for Mathematics (CCSSM); and videos
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 Davitily Math Problem Generator  Nguyen, Ly; and Pardue, David
Create worksheets and tests, including options for multiple choice, printable versions, and answer keys. Click to insert preworded questions in basic math, algebra, and geometry, the parameters of which vary randomly. Requires JavaScript. Also available
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 Decision Development Corporation
Software for K12 students and teachers, for all platforms. Math software included separately and as part of other product lines. (Gigamath Playground and Junior Gigamath Playground offer word problem practice for ages 714 and 48 respectively; Ellen
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 Dekov Software
Educational software, a journal of computergenerated Euclidean geometry, and a computergenerated encyclopedia of Euclidean geometry. Current software titles include: Solving Triangles (stepbystep solutions to triangle problems in elementary geometry);
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 Demos with Positive Impact  David R. Hill and Lila F. Roberts
A collection of classroom demonstrations that use some form of instructional technology. The authors invite others to submit demos and provide them with feedback on the demos already collected. Demos are organized under the levels of Pre Calculus, Calculus
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 Descartes 3  Ministry of Education, Culture, and Sport, Spain
Create interactive math lessons in web page format with this applet, or download any of more than 60 already created applets (ranging from "representing numbers on a straight line" to "tables and algebraic terms," from "geometry and a game of billiards"
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 Didax Educational Resources
Didax publishes and distributes books, manipulatives, and software for math, reading, science, and art. The site offers free demo software, product descriptions, information requests, technical support, and current national educational standards. Didax
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 DimensionU
Creators of educational software that put the action adventure fun of mainstream video games in a learning environment that prepares students for high stakes exams. First person shooter games Dimenxian, Evolver, and Meltdown contain 3dimensional virtual
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 Discrete Mathematics Graphic Calculator Series  O. T. Lee
A set of booklets written for the Year 12 Discrete Mathematics Programme of Western Australia, integrating the problemsolving process with specific graphic calculator models (Casio CFX 9850G/G+/GB+ and the Hewlett Packard 38G), and including programs
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 DLK MathsWork Software
Selfdifferentiating, topicspecific math software for Windows 3.1 and above, on number, shape and space, and data handling. All of the practice modules have on screen monitoring at three levels. Six problem modules designed to improve users' application
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 Dollar Bill's Adventures with Money  BDi Software
Software for Mac or PC created to teach realworld problemsolving skills to students in grades 15. A freeware demo of the CDROM includes up to 12 activities to download, or play online using Shockwave. Activities for grades 12 focus on coin identification,
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 Dositey.com  Dositey Corporation
Interactive lessons, exercises and worksheets, educational games, openended questions in Math and Language Arts, and more.
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 The DOW Bee Mental Math Project  Ronald H. Scott
"Who would like to know the day of the week they were born on?" The DayoftheWeek (DOW) Bee promotes the mental conversion of calendar dates into their weekday equivalents, requiring only a "reasonable mastery of simple division, addition, and subtraction."
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 Downloads  Mac  Mathematics  CNET Download.com
Search this site to find a particular piece of software for the Mac, or browse their mathematics listings.
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 Downloads  PC  Mathematics  CNET Download.com
Search this site to find a particular piece of software for the PC, or browse their mathematics listings.
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 Dr. Aardsma's Math Drill  Aardsma Research and Publishing
Commercial computer software for giving automatic flashcardstyle math facts drills to elementary students. Drills addition, subtraction, multiplication, and division.
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 DragonBox  WeWantToKnow AS
"Secretly teaching algebra to your children" by letting them discover algebraic rules, play with them, then use the rules to solve puzzles through trial and error. See testimonials and videos about this multiplatform math game created by WeWantToKnow
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 DreamBox  DreamBox Learning, Inc.
Online, standardsbased math adventure games for individualized learning in kindergarten, 1st grade, and 2nd grade. Seealesson and register a trial account. The site also offers parents free "printables," tips, research articles, and other downloads,
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 Dr Lamin Tutor Books
Free programs on CDROM, produced by Dr S.M Hajsadr (you must pay postage and
packaging if you find them useful). Essential Maths is the first in a series of Tutor Books that aim to make learning mathematics easy and consistently planned. Topics include:
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 Dr Mike's Math Games for Kids  Michael Hartley
Free printable and online math games for kids: traffic jam, times tables, magic square, magic hexagon, sugar sugar, Archimedean tilings, magical calculator birthday trick, and more. Newsletters include Monday Morning Math, with what math says about daily
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 EdAlive Educational Software
Educational games and teaching utilities, for Windows or Mac operating systems. Australiabased company.
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 edin.us  Edin
Makers of the arithmetic apps Digitron, which challenges players to form true equations out of numbers and operators as they tumble down the screen, in the style of Tetris; and Math Samurai, which challenges players to identify the missing operation in
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 EdRes  Educational Resources  Graeme Willoughby
Purchase small Microsoft Excel files containing maths problems and science/technology quizzes. (Demo downloads are available from the site.) Instant feedback for answers stimulates individual learning styles using a familiar delivery medium.
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 Ed Tech Tools  University of Hawaii
Free, webbased tools for educators, featuring QuizMaker 2.0, which allows users to create and correct online quizzes easily and quickly, without any knowledge of HTML. It provides instant feedback to students, and/or package answers in an email that
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 Educational Freeware  Marianne Wartoft
Listings, descriptions and reviews of free educational software for kids and adults. Some of the software is web based (see the online section), and some is Windows software that you can download (see the downloadable section). In order to see what titles
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 The Educational Gaming Environments group (EdGE)  TERC
"At the forefront of the 'Games for Good' and 'Serious Games' movements," this research design and development team investigates gamebased learning environments. Funded in part by the National Science Foundation (NSF), EdGE supports and measures engagement
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 Educational Math Software  Educational Software Directory
An annotated directory of math learning software.
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 Educational Resources for Electronics Technology  ETCAI Products
Download trial software for teaching electricity, trigonometry and
electronics. Qualified teachers can request a free trial CD.
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 Educational Videos and Software for K12  Allied Video Corporation
Educational videos, software, and Web page services. The math series includes The Assistant Professor math videos (Fractions and All Their Parts; All About Angles; What is Area?; What are Variables?; The Pythagorean Theorem; Which Way is Minus?; The World
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 Education by Design
Publishers of educational software, focusing on special needs software for Windows and Macintosh that can be accessed with keyboard, mouse, and especially with IntelliKeys, Touch Windows or with switches. Math titles include MathPad, an arithmetic tutorial
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