Some researchers suggest that recasts are effective in showing learners how their current interlanguage differs from the target (Long & Robinson, 1998). Others have argued that recasts are ambiguous and may be perceived by the learner as confirmation of meaning rather than feedback on form (Lyster, 1998a). We review research on the effectiveness of recasts in first and second language acquisition, paying particular attention to how recasts have been defined and how their impact has been assessed

No abstract

While there are studies that have looked at the implementation of mobile learning in educational institutions, particularly the identification of issues encountered, few studies have explored holistically the elements that sustain mobile learning. This study dissects the findings of a longitudinal study of a secondary school adopting a personal digital assistant programme and proposes a person-centred sustainable model for mobile learning.

While the ready-made Lego TM Robotics kits are popular in schools and are used by students at both primary and secondary year levels, using the Picaxe microcontroller (chip) to create simple electronic devices, including robotic devices is less popular. The latter imposes an additional challenge as a result of the need to construct the universal board with the chip in it-a challenge embraced in the cross-disciplinary mechatronics program in this study. This paper reports on how teachers from five Australian secondary schools put into practice technological pedagogical content knowledge (TPCK) developed from expert-led workshops and explores factors (intrinsic and extrinsic) that influenced the implementation. The results show that different strategies were adopted by the schools in implementing the programs. While teacher attitude played an important role in influencing the program's success, being able to identify where the program sits within the curriculum and planning around timetable and facility constraints were also important factors to consider. The research indicated that teachers' TPCK was most challenged in non-obvious areas such as diagnosing where faulty soldering joints were.

No abstract