The Letter People The Letter People The Letter People is a children's literacy program and the television series based on that program. The term also refers to the various characters depicted in the program and television show. Elayne Reiss-Weimann and Rita Friedman originally created the concept of Letter People to teach beginning readers how to "decode" or "sound out" the consonants and vowels that form words. They embodied the basic rules of phonics into stories about these make-believe characters called Letter People. Each letter of the alphabet had a distinct characteristic to help children learn not only the letter but the sound the
Respiratory tract an alveolus . The upper respiratory tract, can refer to the parts of the respiratory system lying above the sternal angle (outside of the thorax), above the vocal folds, or above the cricoid cartilage. The larynx is sometimes included in both the upper and lower airways. The larynx is also called the voice box and has the associated cartilage that produces sound. The tract consists of the nasal cavity and paranasal sinuses, the pharynx (nasopharynx, oropharynx and laryngopharynx) and sometimes includes the larynx. The lower respiratory tract or lower airway is derived from the developing foregut and consists of the