GeoGebra: The Dynamic Math Software in K-12 Classrooms

(Half-Day Workshop)

 

At the end of the Workshop teachers will

(i)     Know the scope of this free software, i.e., what they can do with GeoGebra in the broad spectrum of mathematics,

(ii)    Know where to go for more information.

(iii)  Understand some key features of GeoGebra and use some tools of GeoGebra,

(iv)   Develop GeoGebra applets, and

(v)    Create html files on the fly of their projects.

 

Agenda

 

1. Introduction to GeoGebra with FAQ on GeoGebra and a couple of demonstrations at http://prabir.pbworks.com: 8:30 to 8:45 am or 12:30 to 12:45 pm

 

2. Familiarization with GeoGebra interface: 8:45 to 9:30 am or 12:45 to 1:30 pm

1. Algebra view

2. Graphic view

3. Spreadsheet view

4. Input Bar: Use of commands, functions, and special characters

5. Menu Bar: Edit, View, Options, Tools, Help

6. Tool Bar: Brief overview on some tools

7. Context Menu: Object Properties

 

3. Hands-on practice with GeoGebra: 9:30 to 11:15 am or 1:30 to 3:15 pm

A. Start a project of drawing two dynamic Intersecting Straight Lines (Refer to Instructions).

a) Input slopes, m1 & m2 and y-intercepts b1 and b2  in the Input Bar

b) Input two straight lines f1(x) = m1x+b1 and f2(x) = m2x+b2

c) Create Sliders for slopes (m1, m2) and y-intercepts (b1, b2)

d) Label the lines with their respective equations

e) Color the two lines and sliders with different shades

f) Change Thickness of the straight lines

g) Use Dynamic Text for the straight lines checking specific conditions such as the lines being perpendicular or parallel to each other.

 

B. Start a project on dynamic Box and Whisker Plot (Refer to Instructions).

a) Fill out the GeoGebra Spreadsheet with data

b) Use a couple of GeoGebra commands to draw Box and Whisker Plot

c) Use built-in GeoGebra functions to calculate Minimum (Min), Maximum (Max), Range (Range), Mean (Mean), Median (Median), Mode (Mode) and Quartiles (Q1, Q3).

 

C. Export GeoGebra projects to create html files to upload on geogebratube.com. You will need to sign up at geogebratube.com (Refer to Instructions).

 

4. General discussion: 11:15 to 11:30 am or 3:15 to 3:30 pm

(i) Visit GeoGebra forum at http://www.geogebra.org/forum. Later sign up at your convenient time.

(ii) Clarify doubts.