These cards can be used in many ways. They can be used as a matching game to identify the written fraction with the picture. It could also be used to identify equivalent fractions with pictures and/or written fraction.
Third graders often have difficulty understanding what fractions are and the more manipulatives and pictures you can use the better. Your lower functioning students need lots and lots of practice with picture to number for them to understand the concept. I hope these will help. I have left some blank for you to add whatever fractions you want.