I used IEW with both ds and dd and loved the results. At first, I modeled key word choices. As he said on the DVD set, numbers and symbols are allowed. When they started choosing key words, I may guide them by saying, "what are you most likely to remember?" The subject of the sentence is usually known.
So in the example you mentioned, he could use:
Traveled, 25,000 mi., faster, jet
once you use "traveled", you'd remember WHAT traveled.
With time, it gets easier like everything else!
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