[HUE]

Almost all of my students use an electronic dictionary, although some punch in words on the cellphones. That gets old quick, though, and they splurge for one with the OED, a learner's dictionary, collocations, etc. But I've found the occasional mistake in these, too.

I've found that I can limit dictionary use by teaching just a little above their level, and also by incorporating enough opportunities for presentation, self-discovery, and use of the language in context. When the material is too difficult, students have no choice but to resort to the dictionary. That said, in a public school environment, you're working at the pace of the curriculum and not the students.