VANCOUVER — AT&T and Human-I-T provided Treehouse, a Seattle-based nonprofit that assists children in foster care, with 50 refurbished laptops and backpacks stuffed with school supplies to distribute to Vancouver students in need. This distribution is part of a broader AT&T employee effort to help bridge the digital divide by equipping 20,000 students across the country with laptops and backpacks. In addition to supplies like notebooks, pencils and headphones, the backpacks included cards of encouragement written by AT&T employees. In Washington, it’s estimated that 6 percent of households don’t have access to the internet or connected devices needed to fully participate in the online world. “Connectivity is vital for students, and we’re glad we can provide these resources to those that need them most,” said Lauren Paolini, AT&T Washington’s area manager, external and legislative affairs