The entire Paul Banks Elementary School student body — all 190 pre-kindergarten through second-grade students — filled the Mariner Theatre stage Monday morning to put the finishing touches on “A Bear-y Merry Holiday.” With props for the upcoming production of the Nutcracker pushed to the side, the youngsters received last-minute direction from Tina Moore, the school’s music teacher. The following day the youngsters were back on stage to give the full musical performance for family, friends and fans.