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1963 - 1993 Teaching biology and chemistry at high schools in Germany (Lauterbach) and Egypt (DEO Cairo).
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1993 - 1996 Integrated Expert in the Egyptian Ministry of Education (In-service teacher training).
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1997 Short term expert in Jordan (EU-Project "Improving teacher training at Jordan Universities)"
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1997 - 2014 "Marketing" and further developing the methodical access of El Marsafy
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In-service training
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