Wasted: Plexiglass Boondoggle At SC Elementary School MYRTLE BEACH, S.C. — Forestbrook Elementary teacher Teresa Holmes has several questions for school board leaders after seeing the plexiglass set up in her classroom. Teresa Holmes recorded a video of her classroom which has 28 desks now armed with plexiglass shields. She originally posted the video to social media, but the Horry County School District allegedly asked her to remove it.