Am I the only one here that still makes my kids look up words in dictionary? We have all the e-devices but I think there's something worthwhile about re-enforcing alphabet order in words, learning by wandering or happens upon words nearby in paper dictionary. The kids also have to sound out the words to try to find it so they learn different word-sound patterns. All this skills are practiced each time they do a quick dictionary lookup.
It's useful to learn things the hard way, but then move on at some point once internalized. I remember as a teen avoiding the drudgery of the dictionary and it affected my vocabulary for a decade+, until I got onto the internet.
