In December I taught a Pronunciation Class and I used a new tool called the Color Vowel Chart. English has 14-16 commonly used vowel sounds, whereas many other languages have 4-7, so needless to say our students struggle with many of these brand new sounds.
With the chart, each vowel sound is associated with the name of a color (green, silver, black, red, and so on). My name, Lee, for instance, is green because it’s the eeee sound. You can see the chart here – Chart
We plan to integrate the chart into our curriculum, because after some initial confusion, students begin to hear and produce the sounds better. English pronunciation is extremely challenging for our students, but it’s extremely important, so we’re focusing more energy on finding tools to make it easier.