New Canaan Country School will host a Discovery Fair for toddlers, pre-schoolers and their parents. The Discovery Fair is a hands-on exploration of scientific and artistic principles. Activity stations will include: paper-making, paint mixology, clay & wire, transparent collage, catching tadpoles, obstacle course, wood sculptures, wind tunnel, ramps and sensory tables. The day will end in a group sing-a-long. The event is free of charge and will be held in the Early Childhood Thacher Building on New Canaan Country School’s…