Welcome Kelly! My first question (OK, I work with too many logicians!) is "which logic?" Do you actually mean teaching logic as logicians understand the term, or just generally encouraging systematic thinking, or what?
My DS (now 9) has enjoyed the software that goes with Barwise and Etchemendy's book Language and Logic (and something else?), especially Tarski's World, to an extent that has surprised me given that these are not games exactly. More recently he has enjoyed Laser Logic 3d on Android, though this is not logic so much as thinking skills in fact.
