Estimate the area of a shape based on rectangles on a grid. Next, place rows and columns of squares inside two rectangles to work out the correct formula for finding area.

Understanding nets close net A group of joined 2D shapes which fold to form a 3D shape. of 3D close surface area (of a 3D shape) The total area of all the faces of a 3D shape.

Learn about the surface area and volume of prisms with this BBC Bitesize Maths article. For students between the ages of 11 and 14.