Additional/Supplementary resources
Here are all of the materials in this Module. They are structured into ZIP files. Each ZIP file contains all the necessary files to be used for a certain resource. There are also approximate sizes of the files. 
Why CAS and Watter gutter
Why CAS  (4,5 MB)         Water Gutter (1MB)
Chicken fence
just worksheet (0,5 MB)         GeoGebra Applet (25KB)         TI-Nspire™ instructions (1,3MB)        
Box problem
Worksheet (87KB)         Screencasts with sources (9 MB)        
Usage in the classroom

Due to space limitations  following materials can be obtained by sending a request to Edumatic.Module1@fmf.uni-lj.si