© STEM PD Net project (grant no. 2016-1-DE03-KA201-023103) 2016-2019, CC-NC-SA 4.0 license granted.
The information of STEM PD Net is distributed under the Creative Commons Attribution-Noncommercial-Share Alike License as described at:

The creation of resources has been co-funded by the Erasmus+ programme of the European Union under grant no. 2016-1-DE03-KA201-023103. Neither the European Union/European Commission nor the project’s national funding agency PAD are responsible for the content or liable for any losses or damage resulting of the use of these resources.

The editorial staff has handled the content of with much care, even though she does not take legal responsibility for possible mistakes or flaws. For complaints, comments or in case of annunciation of content which breaks legal laws or legal rights of third parties, please send an email to

Share on Facebook
Tweet about this on Twitter
Pin on Pinterest
Share on LinkedIn
Email this to someone

Feel free to share this EU-supported resource!