Some of the most crucial hours are after school when kids too often are unsupervised or idle. That’s why Afterschool Guitar, organized by West Park Cultural Center, is the perfect activity. Youngsters, ages 9 to teens, can learn a new instrument; expand guitar skills; build confidence as well, and improve hand-eye coordination, multitasking, and problem-solving skills. Instructor and musician Richard Tucker leads the class that accommodates beginners to the advanced. Instruments are supplied. Free, Mondays, from 4:30 p.m. to 6 p.m. EST. John C. Anderson Cultural Center, 5301 Overbrook Ave., 215-473-7810 or westparkcultural.org.