Geogebra

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 * Geogebra **
 * Sponsoring Organization: Geogebra.org **
 * Date of Last Update: 2009**


 * Authority: Markus Hohenwarter created Geogebra in 2001 as part of his master's thesis project and later his PhD thesis in Mathematics Education from the University of Salzburg, Austria. Markus continues to lead the Geogebra website at the Florida Center of Research in Science, Technology, Engineering, and Mathematics Education at Florida State University.**


 * Content: This website offers a wide variety of tools for students. You can download the program for free from the or run the program directly from the internet. There is also a large list of Geogebra Wikis that students can use to learn interactively on the computer.**


 * Currency: This website is interactive and is updated whenever new material is created. **


 * Purpose: The purpose of this website is to enhance mathematics education through the connection of arithmetic, geometry, algebra, and calculus.**


 * Organization of Information, Design and Navigation: This site is very well organized and easy to follow. There links work well and information is easy to find. There are links that help you search through the site for specific topics making it easier to find your way around the site.**


 * Strengths: The main strength of this website is that it offers a way for students to connect algebra with geometry and data analysis. By connecting the different areas of mathematics together in one screen Geogebra has made it possible for students to see connections in content that they are learning. Other strengths include the ability to download the program for free, the ability to run the program from the internet, and the wide variety of applets already created.** 
 * Weaknesses: I don't really see any weaknesses to this website.**


 * Instructional Uses: I would use this website whenever I want students to see a connection between algebraic concepts and the graphs that go with them. It is great for teaching graphing skills and to give students a quick look at what an equation might look like graphically.**


 * Benefits to Students: The main benefit is that it is a quick and easy way for student to use interactive software that allows them to make connections between various representations of mathematical concepts.**