Use the illustration here for a conscious and controlled training to master precise and accurate vowel formation.
Use “L” to prepare breath and sound for vowel formation free of tension. Already in shaping the “L,” keep your jaw low and relaxed, creating plenty of space in the mouth. Place the tip of the tongue against the inside of the upper front teeth and form a wide arch forward with the tongue. For the transition to the vowel, simply release the tongue into the position indicated by the vowel triangle/trapezoid, with the tension focused solely on the corresponding point of articulation, while the rest remains relaxed.
Note: For any difficulties, see Problem Catalogue and Suggested Solutions (Module 2, pages 89–113).
This overview offers valuable input and inspiration on the most common problems and challenges, how to recognize them, and which solutions you might consider.