Many children make predictable developmental sound substitutions as they are learning to talk. Articulation errors may involve substituting one sound for another (“tar” for car), omitting a sound in a word (“boo” for blue), or distorting a sound.
- Respiration (abdominal air)
- Phonation (larynx / vocal cords)
- Resonation (mouth / nose)
- Jaw, lip, tongue and abdomen strength and stability