Directory Top sites directory

Arts Business Computers Games News Health Recreation Regional Science Shopping

Directory web directory open directory project

Whatever you are looking for in Kids and Teens, School Time, Math, History, you can probably find it here. Actidir offers a large collection of annotated links to Kids and Teens, School Time, Math, History sites organized by category. Browse thousands of web sites that are more focused on one particular aspect of Kids and Teens, School Time, Math, History with just the click of your mouse.

Cheap Hotels - Cheap Hotels Reservation. Discount Hotel Reservations worldwide. Find discount hotels, cheap hotels, luxury hotels, lodging and motels at cheap prices.
OOHotels - Discount and cheap hotels worldwide. Hotel rates and lodging reservations at cheap prices.
Hotels Booking - Booking discount hotels worldwide. Book over 90 000 hotels worldwide with our online hotel reservations service.

See also:

This category in other languages:
   
French  (7)  


    http://members.aol.com/bbyars1/contents.html   » Ancient Geometry [ Teens/Mature Teens ] - Presenting an overview from ancient times to the present day, including descriptions of the discovery of pi and the origins of trigonometry.

    http://www-history.mcs.st-and.ac.uk/history/HistTopics/Arabic_mathematics.html   » Arabic Mathematics: Forgotten Brilliance? [ Teens/Mature Teens ] - Explains contributions of Arabian mathematicians by translating early Greek texts, developing early algebraic ideas, number theory and astronomical calculations. Includes information about key people during this time period.

    http://www.angelfire.com/il2/babylonianmath/   » Babylonian Math [ Kids/Teens ] - This site was created to help people understand the Babylonian math system better.

    http://www.scidiv.bcc.ctc.edu/Math/infinity.html   » Counting to Infinity [ Teens/Mature Teens ] - Introduction to infinity including the origins of the sign for infinity and pictures.

    http://members.aol.com/jeff570/mathword.html   » Earliest Known Uses of Some of the Words of Mathematics [ Mature Teens ] - Shows who coined a wide variety of commonly used terms. Organized by first letter.

    http://members.aol.com/jeff570/mathsym.html   » Earliest Uses of Mathematical Symbols [ Mature Teens ] - Discusses first known appearances of common expressions, such as operations, variables and trigonometric functions.

    http://www.math.buffalo.edu/mad/Ancient-Africa/mad_ancient_egyptpapyrus.html   » Egyptian Mathematical Papyri [ Teens/Mature Teens ] - Includes a description of each written document, as well as some sample problems from the Rhind, Moscow and other papyri. These ancient written works were created between 1900 and 1800 BC.

    http://mathforum.org/isaac/mathhist.html   » Famous Problems in the History of Mathematics [ Teens/Mature Teens ] - Describes what mathematicians have worked on, from ancient times to the present. Includes problems suitable for middle school and high school math students, with links to solutions.

    http://education.nmsu.edu/webquest/wq/math/mathpyswq.htm   » The History of Mathematicians and Physicists [ Teens/Mature Teens ] - Outlines a Webquest for studying the history of contributions to both these fields, and includes resources for solving the task.

    http://aleph0.clarku.edu/~djoyce/mathhist/   » History of Mathematics [ Teens/Mature Teens ] - An overview of the subject and a famous 1900 speech describing the main mathematical problems. Includes a chronological list of mathematicians and their work.

    http://members.aol.com/jeff570/   » History of Mathematics [ Teens/Mature Teens ] - Describes the earliest known uses of common words and symbols, as well as explaining some of the ambiguous terms that might be encountered at high school level.

    http://www.saxakali.com/COLOR_ASP/historymaf.htm   » History of Mathematics in Africa [ Teens ] - Explains the early development of mathematical concepts in astronomical calculations, number systems, calendars and climate studies.

    http://www-groups.dcs.st-and.ac.uk/~history/   » MacTutor History of Mathematics [ Teens/Mature Teens ] - An extensive and searchable archive covering famous people and concepts, as well as describing the development of mathematics in various cultures.

    http://lahabra.seniorhigh.net/pages/teachers/pages/math/timeline/MpreAndAncient.html   » Math History Timeline - Pre-historic and Ancient Times [ Teens/Mature Teens ] - La Hababra high school page includes dates related to important developments in the field of mathematics, which occurred from approximately 30,000 B.C. to 500 A.D. Features an accompanying timeline for general historic events and photos.

    http://library.thinkquest.org/22584/   » Mathematics History [ Kids/Teens/Mature Teens ] - Traces the development of math throughout the ages. Also includes biographies of famous mathematicians.

    http://scidiv.bcc.ctc.edu/Math/MathFolks.html   » Mathographies [ Teens/Mature Teens ] - Some biographical sketches of mathematicians, ancient and modern.

    http://www.mathsisgoodforyou.com/   » Maths is Good for You [ Teens/Mature Teens ] - Contains information on famous mathematicians, theorems, and topics.

    http://it.stlawu.edu/~dmelvill/mesomath/   » Mesopotamian Mathematics [ Mature Teens ] - Discusses the development of numbers, addition tables, exercise problems and solutions for quadratic equations in one of the oldest known civilizations. Covers the period from 8000 B.C. to 364 A.D.

    http://personal.bgsu.edu/~carother/pi/Pi2.html   » Pre-Computer History of Pi [ Teens/Mature Teens ] - Explains the early methods of approximating this famous constant, which is used in measuring the area of a circle. Page includes the dates and names of people who were influential in improving these calculations.

    http://math.vanderbilt.edu/~schectex/courses/whystudy.html   » Why Do We Study Calculus? [ Mature Teens ] - Explains, in everyday language, the developments in astronomy, math, and physics that contributed to the discovery of differential calculus and its relationship to area formulas.

    http://www.washingtonpost.com/wp-srv/style/longterm/books/chap1/mysteryaleph.htm   » The Mystery Of The Aleph [ Teens/Mature Teens ] - This article from the "Washington Post" covers the development of the concept of infinity, from the fifth to the second century B.C., and includes the main findings of Archimedes and the Pythagorean school. [Requires free registration.] (November 16, 2000)


OOHotels | Locations Vacances | Hotels | Cheap Hotels | Hotels Booking
The Open Directory Project is the largest, most comprehensive human-edited directory of the Web. It is constructed and maintained by a vast, global community of volunteer editors. The Open Directory is the most widely distributed data base of Web content classified by humans.
Help build the largest human-edited directory on the web.
Soumettre un site - Open Directory Project - Devenir Editeur

Copyright © ActiDir