Using the activity set space and aliens and the space and the mars classroom resource – design a Martian I would use the book Aliens Love Underpants as a stimulus for the lesson. While reading the story I would pause for class discussion on the illustrations of the aliens. I would ask the children to count how many eyes, fingers etc the aliens had. I would also ask the children to identify 2D shapes in the illustrations. The children would then design their own aliens using 2D shapes. In art, the class would make their alien using materials like cardboard, fabric, pipe cleaners etc connecting 2D and 3D shapes. The children would then describe their aliens and use them as a stimulus for narrative writing.