Here is an easy stitch, Upright Cross Stitch. It has another English name, St George's Cross Stitch, and it is called Rakt Korsstygn in Swedish.
Mattia has just told me the French name is: Point de Croix Droit
Annet tells me, in Dutch, it is called Staande Kruissteek.
It can be worked in two ways:
Yellow: Work a line of Running Stitches and cross each stitch on the return journey with a straight upright stitch as shown in the photo.
Purple: Make an upright stitch, cross it with a straight stitch from left to right. Work the second stitch one step down as illustrated in the picture.
Fill a square with Upright Cross stitches.
Don't forget to hand in the Sunbonnet Sue revision stitch homework as well!!!