My First Book of Numbers to 20 Consonant Sounds 3.1 /f/ sound Jordan & Justine's Weekend Adventures Consonant Digraphs 20 /th/ sound Sharks and Other Sea Life Ginger and Galvin's Garden Consonant Digraphs 20 /th/ sound Consonant Sounds 12.3 /r/ sound Long Vowel Sounds 34.2a /ō/ sound Vowel Sounds Influenced by r 44b /u(r)/ sound America in the 20th Century