Through my career I found it easier for children to understand the difference between area and perimeter by linking perimeter with addition practice and area with multiplication practice. Therefore this resource consists of four lessons: Day 1 - Revising multiplication (my lesson focuses on the array method with HA being challenged to try grid method) Day 2 - Understanding 'area' by learning that it is the space inside a 2D shape, it is a form of measure, that area can be found by counting cm squares with appropriate unit of measure in the answer. Day 3 - Linking day 2's learning by introducing the concept of length x width to calculate area, but still using cm square paper to make the transition easily differentiable Day 4 - Calculating area using length x width by being able to identify the length and width of a quadrilateral, showing their calculations linking back to Day 1 and including appropriate unit of measurement in their answer. HA can be challenged with compound shapes. I used this lesson with a mixed ability Year 3 class, but it can be easily adaptable for higher KS1 or KS2. I cannot include downloadable worksheets in the resource pack due to copyright, but I have included small screenshots of the resources I used for different abilities on each task page so you get an idea of appropriate resources for each day. Most are easily findable using a simple search on Google images or good education websites.