Designing Dynamical Learning Environments for Simulation: Micro-Worlds & Applets on the World Wide Web (paper for the 5th workshop 'Instructional Design for Multimedia Learning' of EARLI SIG 6 in Erfurt, 2002) (un-published)

Dynamical Microworlds in Java on the World Wide Web (Published in: Int. J. Cont. Engineering Education and Life-long Learning)

Simulation and discovery learning in an age of zapping and searching (Published - in Dutch - in ICO publication) (Editors: Wald & v. d. Linden) (2001) (un-published in English) Short version

Shortcomings of the PC monitor; the problem of linear presentation media in learning situations; the importance of parallelism in open learning and working environments (lecture)

Working-, doing- and learning enviroments based on the concept of parallelism; the problem of linear presentation media in learning situations; the importance of a theory in open learning and working environments (Published in proceedings Telematics in a multimedia environment; a publication of the society for computer simulation International (SCS) (Eds. A. Verbraeck & P. Geril) (EuroMedia, London, 1996). (Short version, text without figures)

Parallelism in interfaces (Only published in Dutch, in 'Informatie', the journal of the Nederlandse Genootschap voor Informatica, NGI) (2002)

Parallelism in open learning and working environments (Published in the British Journal of Educational Technology, Vol. 25, no. 2, p. 108-112) (1994)

Parallel Instruction: a Theory for Educational Computer Simulation (Published in the Interactive Learning International, Vol. 8, no. 3 177-183) (1992)

The PI-theory for Coaching in Open Environments (psychology principles);

The underlying theories as cognitive load theory, splitt attention effect, dual code theory, multiple repressentation, etc.;

e-Learning Environments for Simulation, on the World Wide Web, based on the concept of parallelism (Yu & Min) (paper for the EARLI 2003 and the ORD 2003) (un-published)

the THESIS family: design systems

The MacTHESIS system: a design system for turn-key, multi-windowing, stand alone computer simulation learning environments on Macintosh

The javaTHESIS system: a design system for simulation environments for the world wide web

A concept model about learning in learning environments; an attempt to define the dynamics of learning and instruction in relation to certain political items; (Published in in the Journal of Interactive Learning Research)

A general dynamic concept model to achieve a goal (a 'think model'); as occurs in managing, controlling, learning, communicating and designing; an attempt to define accumulation processes as designing, controlling, learning & communication