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Laferriere, T., Breuleux, A., Stéphane, A., Hamel, C. & Turcotte, S. (2017). Infrastructure Support for Boundary Crossing and Teacher Professional Development: An Activity Theory Perspective. In P. Resta & S. Smith (Eds.), Proceedings of Society for Information Technology & Teacher Education International Conference (pp. 892-895). Austin, TX, United States: Association for the Advancement of Computing in Education (AACE).