We last looked at perimeter in detail back in October. They should complete the BBC Bitesize activity and watch the Corbettmaths video first to remind them about the key points. Triangles and Squares should then complete Perimeter of Simple Shapes Worksheet 1, Perimeter of Compound Shapes Worksheet 1 and as many of the Corbettmaths perimeter questions as they can. Circles should complete Perimeter of Simple Shapes Worksheet 2, Perimeter of Compound Shapes Worksheet 2 and the Corbettmaths questions. The answers are provided for all the activities.