Wel­come to the June 18, 2007 edi­tion of brain fit­ness. We hope you will enjoy some of the great posts below! We are hap­py to see a broad­er inter­est in the top­ic since we launched the car­ni­val in Jan­u­ary-thanks to every­one involved.  Education and Professional Development Brett Steen­barg­er presents a great 3‑part series titled Trade…