This is the teacher's introduction where they set up the problem and provide GeoGebra with the initial settings.
When a person holding a flashlight walks towards us the light gets brighter. We are going to investigate this situation and build a mathematical (function) model for the changing light intensity.
Click on the image below to get a video that explains the task more fully.
The spreadsheet in GeoGebra contains the light intensity measured at various distances. Construct a function model for this situation.
Use the GeoGebra applet below to work on the problem.
When you have some ideas on how to start the problem and have tried them out in GeoGebra, create a Jing video showing your actions and the thinking behind them. Create a new page linked to this one and on the page place your Jing video and the GeoGebra sketch as you have left it.
If some people have already worked on the problem look at what they have done and visit their GeoGebra sketches. When you see a place where you can contribute to the solution create a Jing video showing your work in GeoGebra and explaining your thinking. On the page where you joined the solution process create a link to a new page where you will add links to your Jing video and the revised GeoGebra sketch.
This is your Sidebar, which you can edit like any other page in your workspace.
This Sidebar appears everywhere on your workspace. Add to it whatever you like -- a navigation section, a link to your favorite web sites, or anything else.
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