·       ·       Since 1999 : Independent Consultant

·       ·       1989 - 1999 : Professor of Educational Sciences in  the University of Paris 7: Distance learning, 'telematics'. Founder and Director of the laboratory of Teaching Technology.

·       ·       1987-1989: Programme Director for 'New Teaching Technologies' [DP5] at the National Institute of Educational Research. [INRP]

·       ·       1986: Responsible for research in the teaching of Mathematics at INRP [DP1]

·       ·       1984 – 1986: Professor at the invitation of Télé-université, the Distance Learning University of Quebec: Programme director for Information Technology and Science & Technology responsible for 5,000 students throughout Quebec.

·       ·       1982 – 1984: Researcher on Didactics of Mathematics at the University of Paris 7

·       ·       1980 – 1982: Invited lecturer in Mathematics at the “Ecole Normale Supérieure” in Tunis, Tunisia

·       ·       1974 – 1980: Mathematics Teacher, France