Having double the fun is always a good thing! Join Mr. Steve as he sings about the 1-1-1 doubling rule when adding suffixes to root words. In the song, Mr. Steve gives several examples of C.V.C. words that require a doubled consonant when a suffix is added. Accompanying this video are instructional handouts that teach students the 1-1-1 doubling rule and give them an opportunity to practice using it.