This is an 'ing' / 'in' picture sort. I prefer picture sorts to word sorts because students have to say the name of the picture and listen for the sound to determine the ending (rather than just looking at the letters at the end...as they do in word sorts).
Many of my students spell words that end in ing with an in ending. Example- (goin rather than going) Maybe this is just because of the way some students speak, but I thought others may have something similar happening in their classroom. I hope this is helpful! (I always introduce the sort by telling them the 'name' of each person. I accepted win or winning for the picture of the person winning the race:)
i-n-g says ing, i-n-g says ing, i-n-g says ing ing ing, i-n-g says ing! before the sort :)
My students enjoyed it. (1/2 split)