Help children learn to isolate each of the phonemes in individual words, a developmental step now known to be necessary in reading skill development, with Sound Segmentation cards, counters, and mats. Use sound boxes for Reading Recovery or to develop phonemic awareness in all students, as outlined by D.E. Elkonin. Includes 40 Sound Sorting Marker Chips, 4 sets of write-on, wipe-off Sound Boards, 4 write-on, wipe-off crayons, 36 self-checking Sound Segmentation Picture Cards, and Teaching Notes.