Barbershop quartet Barbershop quartet A barbershop quartet is a group of four singers who sing music in the barbershop genre of singing, which uses four-part harmony without accompaniment by any instruments such as piano, a style called a cappella. It consists of a lead, the vocal part which generally carries the tune/melody; a bass, the part which provides the bass line to the melody; a tenor, the part which harmonizes above the lead; and a baritone, the part that completes the chord with the note not being sung by the lead, bass, or tenor singers. The baritone can sing either above or
How People Learn How People Learn How People Learn is the title of an educational psychology book edited by John D. Bransford, Ann L. Brown, and Rodney R. Cocking and published by the United States National Academy of Sciences' National Academies Press. The committee on "How People Learn" also wrote "How Students Learn: History, Mathematics, and Science in the Classroom" as a follow-up. An updated edition "How People Learn II" was released in October 2018. The book draws the following conclusions, among others: Learners and Learning: Thus, the debate within education between advocates of deep conceptual understanding and advocates of broad factual understanding