This work illustrates how a meaningful metalanguage can support
L2 learners in accomplishing challenging tasks in the primary school curriculum at the same time that it promotes the kind of focused consciousness-raising and explicit talk about language that has been shown to facilitate L2 development.
S. Ambrose, M. Bridges, M. DiPietro, M. Lovett, и M. Norman. John Wiley & Sons, (2010)Learning results from what the student does and thinks and only from what the student does and thinks. The teacher can advance learning only by influencing what the student does to learn. Herbert Simon.