My favorite links:

1. FAQ_on_GeoGebra

2. FullWorkshopAgenda2015

3. HalfWorkshopAgenda2015

4. Perpendicular Lines (Classwork)

        Interested participants may verify the relationships between slopes and

        y-intercepts of two lines when they are perpendicular or parallel to each other.

5.  Polygon&Triangles (Classwork) 

        Interested participants may observe how a quadrilateral (4-sided polygon) divides

        itself into triangles.

6. Polygons&TheirDiagonals (Classwork)

        Interested participants may observe that diagonals can be drawn from one vertex

        of a polygon and the number of them is determined by the number of sides of the

        polygon.

7. PolygonWorksheet (Classwork)

        Interested participants may use this to investigate sum of interior angles of polygons

        of different number of sides. Then make a general mathematical conjecture relating

        them with each other. 

8. TrianglesInteriorExteriorAngles (Classwork)

        Interested participants may use this to see what happens to the sum of interior and

        exterior angles when the triangle is altered by dragging any of its vertices.

9. LineOfBestFit

        Interested participants may use this to draw the Line of Best Fit.

10. Evaluation Questionnaire

11. GeoGebra User's Manual

12. GeoGebra Forum

13. GeoGebra Interactive Worksheets

14. GeoGebra Keyboard Shortcuts

15. Math Symbols in GeoGebra

16. Mathcast with GeoGebra

17. Computational Search Engine

18. Yahoo Email Server

19. Google Email Server

20. Collaborative Email Server

21. Prabir's Published Work

       Some of my work during our stay in Brazil.