GeoGebra Links

"In a completely rational society, the best of us would aspire to be teachers and the rest of us would have to settle for less, because passing civilization along from one generation to the next ought to be the highest honor and the highest responsibility anyone could have ." -- Lee Iacocca


Demos
#1 Visualize the graphs of cosine and sine as they are defined by the unit circle.
#2 Visualize the graphs of cotangent and tangent as they are defined by the unit circle.
#3 Visualize the graphs of cosecant and secant as they are defined by the unit circle.
#4 Visualize the problem: Which rectangle with perimeter 60 units has the largest area?.
#5   
Exploring straight lines
Exploring quadratics

Favorites
#1  Visualize the area of a circle, created by Anthony Or. WHY WE LIKE THE APPLET: Great illustration of how a circle of radius r can be rearranged to a shape whose area is well-known. Article about how Anthony Or created the applet
#2   
Applet to explore questions about the circumcenter of a triangle (from Geogebra Applet Central)
#3   
Applet to explore the relationship between the central angle and intercepted arc of a circle (created by Guy Barmoha)