Good old Martha taught us that rather than buying those ridiculously expensive anti-slip mats for a rug, just turn it over and run a few lines of acrylic-latex caulk every 6 inches or so. Let dry and flip over and your rug wont be going anywhere!
P.E.E.L. paragraphs literacy writing mat scaffold in history (PEEL)
PEEL Your Paragraphs writing scaffold. Literacy mats. Particularly for extended writing in history or essays. Helps to make sure students can access at least Level 6 at Keys Stage 3 by explaining and evaluating.