Here's a chance to try out MathPlay, a play-and-learn program for preschoolers from MoMath.
MathPlay lets kids participate in songs, stories, and activities that help improve math skills and problem-solving while letting them socialize with other children. The 30-minute trial class is free for children who haven't participated in MathPlay before; preregistration is required. There is a session for 3-year-olds on February 4 at 9:30am, and a session for 4-5-year-olds on February 4 at 3:15 pm. Free. Ages 3-5.