JOED VIERA/STAFF PHOTOGRAPHER Lockport, NY-1st grade teacher Lynn Watier teaches addition to Becky and Eli (6) Visco during Math Family Night at Charles Upson. "The idea is to help parents understand how we teach math so they have the skills to help their children at home.” said Charles Upson principal Roberta Donovan. Last night was the second time the school hosted the event.