Learn about Diphthongs in Jack Hartmann's The Diphthong Song. Learn that diphthongs turn 2 vowel sounds into 1. The first time Jack says the diphthong and the diphthong sound with 2 words that have the diphthong in the words. The next time through calls for independent answers with the student identifying the diphthong and the diphthong words. Come on, come on sing the diphthong song. Learn how to sing diphthongs as a reading skill. The Diphthong Song Come on, come on sing The Diphthong Song Diphthongs turn 2 vowel sounds into 1 Come on, come on sing The Diphthong Song Let's all sing together Learning diphthongs will help you read and write better When I say the first letter put one hand up When I say the second letter put the other hand up When I say the new sound, clap your hands And when I say the word to the diphthong dance Oi says /oi/ oil voice Oa says /oa/ oat boat Au says /au/ August sauce Ue says /ue/ glue true Oy says /oy/ joy toy Ow says