The teacher will write a three-letter word on a whiteboard. Students can take turns coming up and erasing a letter and then writing in a new letter. The teacher should encourage the students to read the new word that they created to the class. The first few times playing the game, the teacher may choose to suggest the new phoneme that they would like the student to use. As students begin to master this skill, they can be challenged to add letters to the word, without removing a letter to create four letter words. The teacher may also choose to say the words out loud and complete the substitution without writing the words on a board. The teacher may also choose a word part to focus on substituting, for example only substitute the beginning sound of the word. Students can also work with a partner and take turns substituting letters. This can become a competition to see which partners can create the most words. Included in the related resources is an online version of this game that students can play independently.