I have a student that will be transitioning to straw #4. The ¼ of an inch varies depending on how she puts the straw in her mouth. Do you have guidelines for this?
Thank you for the question!
In this case, the first twist must be resting perpendicular to her lower jaw. The first twist of the straw should not pass her lips, and if the twist is perpendicular to her lower jaw, she can not put more of the straw into her mouth.