When Kevin Blackwell, pastor of Valley Creek Baptist Church, Hueytown, looks at his church’s new 9,000-square-foot children’s building, he sees more than just a structure.  “It’s an evangelism tool,” he said.  And the building, with separate wings for nursery/preschool and children’s ministry, doesn’t exist just for those within the church’s walls — it’s for the entire community. “Anything we do…