If you wish to use PiNet with languages other than English, you have a few options.
Unfortunately right now, the PiNet control panel is only available in English.
Work is though in progress to start supporting internationalisation. If you are able to help with translating the project, please sign up on the translators mailing list here.
Sometimes it is ok to just have the Raspbian operating system (chroot) available to students in your home language.
By default, the Raspbian chroot will pull the locale settings from the main Ubuntu server, but if you wish to change the locales used on Raspbian, or add multiple options, follow the instructions below.
Note - Not all software may have available localisation for your language, many still only support English.
sudo ltsp-chroot --arch armhfto enter the Raspbian chroot.
sudo nano /etc/lts.conf.
LDM_LANGUAGE="en_US.UTF-8"(replacing en_US.UTF-8 with the locale you added earlier). Once finished, exit out of Nano by entering ctrl+x, y, enter.