What coding mark is associated with the sound made by the letter 'a' after 'qu'?

The sound made by the letter 'a' after 'qu' is typically represented with a coding mark known as the diereses, which consists of two dots placed over the letter. This diacritical mark indicates a modified pronunciation, helping to signal that the letter 'a' should be pronounced in a distinct way as opposed to its usual sound in other contexts.

In phonetics and language instruction, understanding these coding marks is crucial for teaching students accurate pronunciation patterns, especially in multi-sensory structured language education. The diereses helps clarify that the 'a' following 'qu' is to be voiced as a separate vowel sound, ultimately aiding learners in mastering more complex phonetic structures.