Friday, December 1 Parent & Me Yoga: 10:15 a.m.; Thayer Memorial Library, 717 Main St., Lancaster. Explore yoga and movement through mindful themes, poses, songs, and a story. thayermemoriallibrary.org. Tot Time: 10:30 a.m.; Ayer Library, 26 East Main St., Ayer. Enjoy songs, stories, crafts, or a sensory activity. ayerlibrary.org. Preschool STEAM Story Time: 10:30 a.m.; […]