A set of links to Algebra and Trigonometry GeoGebra applets hosted on GeoGebraTube.
Nine GeoGebra applets that help students explore how symmetries about the x-axis, y-axis, and origin on the unit circle are useful in trigonometry. Examples using the sine and cosine functions are included.
Exploration of ways of measure the size of an angle: fraction of a circle, degrees, or radians. How to convert between differing measures of the same angle. Includes some reasons why 360 degrees is a convenient measure of a full circle.
How to determine both vertical and horizontal translation factors (relative to a "parent function") when looking the definition of a function.
A list of GeoGebra applets that help students better understand the relationship between the coefficients in an equation and the corresponding graph.