Looking for any experience in building/using technology interventions for teaching/learning languages like English/Spanish/Hindi/etc. I am interested in practice environments that are sufficiently personalised, interactive, and aimed at improving one's competence in use of specific language topics such as a active-passive voice, reported speech, use of propositions, use of punctuation, etc. I am working on a project to build such tools, and would like to know of any experience anyone has that they can share. I have done some literature work, and also guided one PhD student on constructivist language learning environments, and I am also working on the area of student models for language learning systems. So, I am looking for interesting thoughts, ideas, and even collaborations.

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