Put your hand on your throat and say thing, elongating the th sound. Now do the same with then. Notice a difference? In the short video below, YouTuber Tom Scott explains how your vocal cords vibrate ...
Anna Scretching-Cole teaches about the diagraphs th and wh. Anna Scretching-Cole teaches about the diagraphs th and wh by writing and spelling words. Digraphs are two letters that represent one sound.