In gnu/linux there are good statistical software packages that are very useful for teaching. LibreOffice Calc has a basic staddistical package that may suffice in most cases in primary education, but in secondary education it is aimed at slightly more complex statistical tests in addition to the possibility of interacting with other graphical interfaces and file formats that are consider de facto standards (like SPSS *.sav format).
Therefore I propose the addition of the following software:
• GNU PSPP ★
• SOFA Statistics
• Gretl
These applications work quite well for the purposes I expose, but I imagine it would help to have software like GNU Octave as a replacement for Matlab and R (R-Commander).
Thank you