1963 - 1993 Teaching biology and chemistry at high schools in Germany (Lauterbach) and Egypt (DEO Cairo).
1993 - 1996 Integrated Expert in the Egyptian Ministry of Education (In-service teacher training).
1997 Short term expert in Jordan (EU-Project "Improving teacher training at Jordan Universities)"
1997 - 2014 "Marketing" and further developing the methodical access of El Marsafy
at schools (Germany, Egypt, Turkey, Zimbabwe) and during conferences in Austria, Chile,
Egypt, Georgia, Korea, Kuweit, Mexico, Thailand.
2. Publications in journals, proceedings, e-books in English and in
German, DVDs and in www.microchem.jimdo.com.
3. Contributions to this homepage