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K-12 Mathematics (and Money) Resources

GeoGebra
A free, multi-platform mathematics software program for all levels of education that joins geometry, algebra, tables, graphing, statistics, and calculus in one easy-to-use package.

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HippoCampus
HippoCampus offers multimedia lessons and course materials to help you with your instruction, homework and studies. You can browse multimedia lessons or complete courses, and find help with the topics covered in popular textbooks. Multiple resources are available, for free, for the subjects of Algebra, Calculus and Statistics.

K-12 Links

Create a Graph at Kidzone - The National Center for Education Statistics offers up a great on-line graphing tool that can be used by students and teachers of all ages. This on-line tool makes creating a graph very simple and straightforward. Users can design, print and save their graphs without learning a spreadsheet program.
Illuminations - The National Council of Teachers of Mathematics (NCTM) is the host of the Illuminations, Infinity (formerly Marco Polo) web site. Activities, lessons, and web links make this a "go to" spot for teachers of mathematics at all grade levels. Every unit of mathematics is supported with on-line activities, games and lesson ideas. You may pick a grade level and type in a keyword to search for activities that are appropriate for your topic and grade level. If you have never been to this web site, it is time well spent!
Math Goodies - A great resource for all things Math! Interactive lessons, worksheets and even homework help for K-12. More than 500 activities for students, educators and parents. Sign up for a monthly newsletter of site updates and math news!
National Library of Virtual Manipulatives - a useful site providing interactive manipulatives for math instruction at all levels. Created by Utah State University.
TeAchnology - This on-line teacher resource includes lesson plans, printable worksheets, preformatted rubrics, printable generators, teaching tips and themes, while listing 256,000 reviewed sites. For math, click on the 'Subjects' tab and then 'Math' and you will find a wealth of information from teaching tools to lesson plans and worksheets that relate to a variety of topics.
Web Math - A great resource for students, this interactive web site gives step by step instructions for the problems that are submitted. Sections include: math for everyone, general math, K-8 math, algebra, plots & geometry, trig & calculus and others too numerous to mention.

Elementary Links

AAA Math - A good site to review elementary and middle school math. Hundreds of pages of basic math skills. Interactive practice, an explanation of the math topic and several challenge games on every page.
Fun Brain - A very popular site that offers numerous fun student activities including Math Baseball, Soccer Shout Out, Power Football, Math Car Racing and What's the Point. Always expanding and always enjoyable!
MegaMath - An absolutely wonderful collection of creative and imaginative ideas, exercises, and fun things to do. For all ages. From the Computer Research and Applications Group at Los Alamos National Laboratory.
 

Secondary Links

ALGEBRA, TRIGONOMETRY, CALCULUS AND BEYOND
AlgebraHelp - Clear lessons on basic algebra in “plain English”; calculators with step-by-step solutions; and worksheets which check your answers automatically.
Dave's Short Trig Course - An introduction to trigonometry, with exercises.
Hippo Campus - This site is intended as a homework helper site for students and is not intended to be used for classroom instruction. With that said, we are really impressed by the offerings for algebra and calculus. Students can select their course, textbook, and the page number they need assistance with and faster than you can say "HippoCampus" an on-line tutoring session begins walking students through interactive examples that align with the lesson from their textbook (Government, biology, environmental science, physics, religion and U.S. history are also covered at this site). (Source: NETA News, November 2007)
Purplemath - Your Algebra Resource
S.O.S. Math - Excellent site for Math review material from Algebra to Differential Equations.

CALCULUS
Calculus-Help.com - This website, founded in 1998, began as a resource for high school calculus students who needed additional practice and detailed solutions to the types of problem they saw everyday in class but had trouble understanding.
Calc101 - does derivatives and integrals with each step explained, automatically, in seconds.
Calculus Help - A professor in the Department of Mathematics at the University of Hawaii, authored these notes to help students learn how to use, not just understand, the concepts of calculus. A total of fifteen topics are covered and include max-min problems, exponential growth, and the derivation of Kepler's second law.

MATH PUZZLES, EXERCISES AND FUN STUFF
Math Goodies - A site featuring interactive math lessons for 5th through 8th grade levels. It also contains chat boards that can be used to help with homework and other areas.
Math Puzzles - A mixed bag of interactive math puzzles and philosophy. Many of these require Java and/or JavaScript.
Nick's Mathematical Puzzles - A collection of puzzles ranging over geometry, probability, number theory, algebra, calculus, and logic. Hints are provided (wherever possible), along with answers, fully worked solutions, and links to relevant mathematical topics. Many of the puzzles are elementary in their statement, yet quite challenging. New puzzles are added on a regular basis.

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Money

 
50 State Quarters
The new Fifty State Quarter Program was introduced by the United States Mint in January 1999. This site published by the U. S. Mint offers comprehensive information about this program, including a program fact sheet, photos and descriptions of each state quarter, the design criteria, the evaluation process, and the history of the quarter.

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Currency Converter
Great for finding out how many monetary units of a given country equals a U.S. dollar.Two-way conversion also possible.

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The pdf files below are published by the Federal Reserve Bank of Boston.  

Banking Basics (This pdf document provides an overview of the banking system for young people. Topics include checks clearing, currency circulation, methods of payment, electronic banking and the role of the Federal Reserve. Designed for students with an understanding of the U.S. banking system.)
Coins and Currency (This pdf document covers the history of American currency, from Columbus to the Information Age.)
"History at Your Fingertips" and "Spirit of the Nation" (This pdf document traces the evolution of paper currency in the United States, focusing on the different themes depicted on our bills.)
History of Colonial Money (This pdf document presents an outline of the evolution of money in the Colonial period. Describes wampum, "country pay," foreign and domestic coins, bills of credit, and continental currency. Includes a short glossary.)
Liberty and the American Eagle (This pdf document examines the two emblems that were the hallmark of our early coinage.)

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H.I.P. Pocket Change
This site is sponsored by the U.S. Mint. If they click on 'Games' and then on 'Cents of Color', children can color a quarter--either the one in use for years or one of the new commemorative quarters from the states where these have been issued. Clicking on 'Info' gives information about why the different images were chosen for each of the new state quarters. Another fun-and-challenging game, even for adults, is the Golden Dollar Puzzle, in which the user is given 3 minutes to put together a jigsaw puzzle of the golden dollar. Or, select 'Puzzle Mint' to see jigsaw puzzles of the new commemorative quarters. On the 'Cartoon' page you will see a cartoon on the 'Birth of a Coin', or you can click on 'Coins of the World' and learn how coins from different nations are sometimes like our coins but can also look very different.