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GeoGebra Applet Central




Site Details
Current Rank: 57 (Education)
URL: http://geogebracentral.blogspot.com/
Site Description: A blog containing GeoGebra applets.
Date Joined: Mar 31, 2011

Tags: geogebra applets, java applets, mathematics software, dynamic geometry software


Latest Blog Posts

Octagon to Square Dissection
on Apr 14, 2013 in octagon to square dissection benett's octagon to square The applet below shows the octagon to square dissection. This is a Java Applet created using GeoGebra from www.geogebra.org - it looks like you don't have Java installed, please go to www.java.com Reference: "Bennett's...



Square Root of a Sum? - Geometric Interpretation
on Apr 7, 2013 in Square root square root of sum algebra errors We know that for non-negative numbers  Can we apply the same for the sum?  In the example below a and b are the legs of a right triangle.  According to the Pythagorean Theorem the hypotenuse is Drag to the left the blue point A to rotate the l...



The Sum of the First n Natural Numbers - Dynamic Geometric Proof
on Mar 6, 2013 in natural numbers sum sum of natural numbers This applet gives a dynamic proof of the formula for the sum of the first n natural numbers. Irina Boyadzhiev, 6 March 2013, Created with GeoGebra Download the file Irina's GeoGebra Applets...



The Sum of Squares - dynamic proof
on Mar 2, 2013 in squares sum of squares natural numbers series sum This applet gives a  dynamic proof of the formula for the sum of the squares of the first n natural numbers.  We start with three times the sum of the squares and rearrange the parts of one of the sums. Click on "Color the third column". Drag the...



Domain and Range of a Function by Flattening to the Axis
on Jan 22, 2013 in function domain range This applet can be used to introduce the concept of Domain and Range of a function by flattening the graph of the function over the coordinate axes. Click on a button to select one of the three functions. Drag the "domain" slider. The graph of the f...



Domain and Range of a Function
on Jan 12, 2013 in function domain range This applet can be used to demonstrate the concept of Domain and Range of a function. Click on a button to select one of the three functions. Drag the "domain" slider. A vertical ray will scan the viewing window and will project the intersection poi...



Square Octagon Tessellation
on Jan 2, 2013 in semiregular tessellation tessellation One of the objectives of GeoGebra Applet Central this year is to update the output files of my GeoGebra Tutorial Series. The previous outputs were still in version 3.2. The applet below is the output of GeoGebra Tutorial 10 - Vectors and Tessellatio...



Year 2012 in Review - The Most Popular Posts
on Dec 31, 2012 in favorite posts most popular posts It's the end of the year and it's time to look back your favorite posts. Below are the most popular posts for 2012 in terms of traffic (Source: Google Analytics). GeoGebraTube: 12000+ applets and counting Pythagorean Theorem Proof Animation Using B...



Square Rectangle Tessellation
on Dec 8, 2012 in demiregular tessellations GeoGebra applet tessellation The applet below is another tessellation. It is composed of rectangles and equilateral triangles. It is one of the demiregular tessellations. This is a Java Applet created using GeoGebra from www.geogebra.org - it looks l...



GeoGebra 4.2 Released
on Dec 6, 2012 in geogebra 4.2 download geogebra 4.2 sneak peek GeoGebra 4.2 GeoGebra 4.2, the newest version of GeoGebra, is now available for download.  Here are the links to know more about the new features. Overview of the New Features The Official Release Notes A more detailed explanation of the Release Notes GeoGebra...



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