Use this Keynote presentation to quickly review the letter names and sounds with your class. Repeated exposure to keywords and reviewing names/sounds will help your struggling readers and the activity it so quick and animated that your non-struggling readers won't mind participating, too!
You can have the students call out one at a time, in small groups (ie, Table 1, all the girls, etc) or as a whole class.
(I converted this file into video for those of you without access to Keynote. You can find it with the same name in my "store"! The advantage of having it in Keynote is that the teacher can pace the transitions between letters and slides.)