GEOMETRY SKETCHPAD

Geometer's Sketchpad is a popular commercial interactive geometry software program for exploring Euclidean geometry, algebra, calculus, and other areas of mathematics. Geometer's Sketchpad includes the traditional Euclidean tools of classical Geometric constructions; that is, if a figure (such as the pentadecagon) can be constructed with compass and straight-edge, it can also be constructed using this program. However, the program also allows users to employ transformations to "cheat," creating figures impossible to construct under the traditional compass-and-straight-edge rules (such as the regular nonagon). You can animate objects. Also, you are able to find the midpoint and midsegments of objects. Geometer's Sketchpad also allows to measure lengths of segments, measures of angles, area, perimeter, etc. Some of the tools one can use include; construct function, which allows the user to create objects in relation to selected objects. The transform function allows the user to create points in relation to objects, which include distance, angle, ratio, and others. With these tools, one can create numerous different objects, measure them, and potentially figure out hard-to-solve math problems. Geometer's Sketchpad is used in many secondary mathematics classrooms throughout the United States and Canada. NCTM (National Council of Teachers of Mathematics) had identified one of its six principles as a Technology principle, stating that "Technology is essential in teaching and learning mathematics; it influences the mathematics that is taught and enhances students' learning." Geometer's Sketchpad is one of these examples. The program comes with program files to help deepen students' understanding of such concepts as slope, geometric transformations and arithmetic on integers.

AND WE DID SOME ACTIVITIES USING THIS SOFTWARE IN OUR ICT CLASS UNDER PN. AZYAN. I DID ENJOY IT AND WOULD LIKE TO LEARN MORE ABOUT THIS SOFTWARE.

I HOPE YOU GUYS ALSO ENJOY THE WORK!

GEOGEBRA

GeoGebra is a free interactive geometry software for education in schools. Its creator, Markus Hohenwarter, started the project in 2001 at the University of Salzburg, continuing it at Florida Atlantic University (2006-2008), Florida State University (2008-2009), and now at the University of Linz together with the help of open-source developers and translators all over the world. GeoGebra is written in Java and thus available for multiple platforms

Dynamic Geometry, Algebra and Calculus

GeoGebra is dynamic geometry software. Constructions can be made with points, vectors, segments, lines, polygons, conic sections, and functions. All of them can be changed dynamically afterwards. Elements can be entered and modified directly on screen, or through the command line. GeoGebra has the ability to use variables for numbers, vectors and points, find derivatives and integrals of functions and has a full complement of commands like Root or Extremum. Teachers can use GeoGebra to make conjectures and prove geometric theorems.

Teaching Materials

The GeoGebraWiki is a free pool of educational materials for the dynamic mathematics software GeoGebra. Preview a few dynamic worksheets created with GeoGebra, these and other worksheets can be found in the English section of GeoGebraWiki.

• Circles Domain and Range
• Absolute Value Domain and Range Visualizing Domain and Range
• Inscribed Angle Investigation of an angle inscribed in a circle
• Inscribed Angle Practice Practice worksheet for an angle inscribed in a circle
• Triangle Angle Sum Theorem
• Triangle Exterior Angle Theorem Investigating Triangle Angle Properties
• Point-Slope form
• Slope-Intercept form Investigating Linear Equations