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This paper analyses some aspects of the development of educational technology in the last twenty years in Argentina. The author considers that this subject has the same problems as the educational system: continuity absence, incoherence, a trend to simplification and a prevalence of quantitative answers. In order to show this reality, the author describes and analyses some experiences that cover different aspects of the subject. All of them were educational proposals of digital technologies and the paper shows them with their problems and failures.