I am glad you raised the point about teaching linguistic concepts. I had myself pondered on whether we should be confining ourselves to comparing international vs home students in a UK University environment – or whether other forms of learning and, indeed, overt language instruction should also be taken into account here. The article limits itself to engineering students but obviously has far wider implications, which would be interesting to explore. Re teaching language itself – as I consider how to approach the upcoming slide presentation, the inadequacies of attempts to present grammar in a meaningful visual form are already coming back to haunt me. It has always astonished me how certain graphic devices – such as time lines for tenses etc – can be so illuminating for some individuals and yet leave others so totally nonplussed.