6Hafner, C. , & Miller, L. Fostering learner autono- my in English for Science : A collaborative digital vide- o project in a technological learning environment [ J ]. Language Learning & Technology, 2011 ( 15 ).
10Kafai, Y. & Resnik, M. Cortstructivism in Practice : Designing, Thinking and Learning in a Digital World[ M]. Mahwah,NJ:Lawrence Erlbaum Associations, 1996.