S.B.
If you are going in the Spring I would definately take them to the Dallas Arboretuem. It is great year around but Spring and Fall are my favorites. In the summer, have the kids bring the swim suits because they can play in frog water garden.
I also like the Dallas World Aquarium in downtown Dallas. I have never been to the Kennedy museum downtown but I heard it was interesting. Victory Park is also neat to eat and walk around.
For shopping I would take them to Sam Moon shopping center at 635 and 35. They have so many great deals People are blown away!!
I agree with the Gaylord Texan and I hope to visit the Lone Wolf over Spring Break. The Stockyards are one of a kind.
Have fun!!