Set A1 focuses on CVC short vowel words, final double consonant and -ck ending, inflectional ending -s, open-syllable long vowels, CVCe long vowel words, long vowel pairs and soft c and g.
Set A-2 gives students more opportunities to practice decoding one-syllable words. Three books focus on short vowels; three on both short and long vowels.
Sound Out A-4 Red Hill Farm is aimed at middle and high school students, as well as adults. Three books offer Sound Out Level 1 skills, 3 books at Level 2.
Three books in set focus on initial silent letters, consonant digraphs and final digraphs, three focus on diphthongs, r-controlled vowels, and initial silent letters.
A chapter book format gives students massive opportunities to practice decoding one-syllable words with short and long vowels, consonant blends, and digraphs.
Three books in C1 Set focus on contractions, and spelling patterns (ign, igh, ight, ought, aught), and three books focus on prefixes and suffixes and syllabification rules.