A collection of resources for teaching perimeter. Suitable for lower KS2, but can be easily modified for older children. Includes a PowerPoint to teach the method for calculating perimeter of regular 2D shapes and compound shapes. Includes shapes for calculating perimeter (some including measures, some needing to be measured) & perimeter word problems. Differentiated 3 ways for both shapes and word problems. Alternative presentation of worksheets for shapes & word problems also included.