The Geometer's Sketchpad 4.0

Sketchpad is a dynamic construction and exploration tool that enables students to explore and understand mathematics in ways that are simply not possible with traditional tools—or with other mathematics software programs.

Accomplish Euclidean constructions with the drawing tools in the Toolbox and with commands in the Construct menu.




Go beyond Euclidean constructions using commands in the Transform menu to construct translations, reflections, rotations, dilations, and iterations by fixed, computed, and dynamic quantities.



Enter the realm of analytic geometry using the Graph menu to plot functions and work in rectangular or polar coordinate systems.



Calculate, define, evaluate, graph, and differentiate functions; see derivatives both graphically and symbolically.

Create powerful, flexible, animations, for example, to trace out sine waves and explore other trigonometric identities.

Use parametric color to add an "extra dimension" in any visualization, ranging from simple mathematical finger-painting activities at the early grades to surface plots at the higher grades.

Modify sketches easily through Split/Merge and editing of calculations and functions.

Encapsulate complex constructions in single steps with user-designed Custom Tools.

Take advantage of enhanced graphics: full color objects, text, and background create striking visual effects; styled text enhances professional appearance; mathematical text increases authenticity.

Create multi-page Sketchbooks: assemble related activities and package them with activity-specific tools; create electronic portfolios and presentations; develop curriculum; design activities.

Integrate Web-based resources into Sketchpad activities and publish "live" Dynamic Geometry® activities on the Web.