Here is a selection of posters for your Math classroom. Included in your purchase would be 11 posters (pdf files) on the following topics:
Area and Perimeter
Note on Negative Numbers poster - This is one way to help students remember how to multiply and divide negative numbers. Pupils draw a face like in the poster (or simply a circle with the three signs in to represent the eyes and mouth). They cover up the two signs from the multiplication/division problem. The uncovered sign will be for the answer.