This sound is /ꝏ/, as in the word 'blue.'

This sound is /ꝏ/, as in the word 'blue.' The International Phonetic Alphabet (IPA) represents this phoneme with the following symbol: u. By this point in Once’s curriculum, the instructional content renders this letter combination as ‘ue’ in Times New Roman font. In these middle stages of the curriculum, the instructional content will have phased out the specialized orthography that helped beginning readers (pre-kindergarten students through early elementary grades) learn letter-sound correspondence more quickly.