MR / Schenectady, NY.Yates Arts-in-Education Magnet School.Full-Day Pre-K class; urban school.State Funded through NYS Universal Pre-K Program.Boy (3, Korean-American) plays with rolling ball toy at free playtime. .Use of toy develops manipulative skills (putting balls in hole at top); observation and visual tracking (as ball rolls down ramps); and drawing conclusions (about round objects and downward motion)..MR: Kim1 .©Ellen B. Senisi