A lesson is a structured period of time where learning is intended to occur. It involves one or more students (also called pupils or learners in some circumstances) being taught by a teacher or instructor. A lesson may be either one section of a textbook (which, apart from the printed page, can also include multimedia) or, more frequently, a short period of time during which learners are taught about a particular subject or taught how to perform a particular activity. Lessons are generally taught in a classroom but may instead take place in a situated learningenvironment.
In a wider sense, a lesson is an insight gained by a learner into previously unfamiliar subject-matter. Such a lesson can be either planned or accidental, enjoyable or painful. The colloquial phrase "to teach someone a lesson", means to punish or scold a person for a mistake they have made in order to ensure that they do not make the same mistake again.
"Lessons" is the eighth episode of the first season of the HBO original series The Wire. The episode was written by David Simon from a story by David Simon and Ed Burns and was directed by Gloria Muzio. It originally aired on July 21, 2002.
One of Wallace's young charges wakes him for help with their math homework. Wallace appears unusually tired and irritable, but he awakes to assist with the child's school work anyway. The young kid is unable to do a simple story problem. Wallace asks a similar question, but uses the language of the drug business, instead of busses, which the kid solves in seconds. Poot shows up during the math lesson and encourages Wallace to come to work rather than lying around all day, which he has frequently been doing recently. He is reluctant and refuses to leave his room. He then asks to borrow money from Poot, who begrudgingly obliges. Afterward, Poot reports his concerns over Wallace's activities to D'Angelo, who wants to talk with Wallace face-to-face. Meanwhile, at the print shop (a Barksdale front), Stringer berates the staff for not acting like professionals.
The literary language, called Modern Standard Arabic or Literary Arabic, is the only official form of Arabic. It is used in most written documents as well as in formal spoken occasions, such as lectures and news broadcasts.
Some of the spoken varieties are mutually unintelligible, both written and orally, and the varieties as a whole constitute a sociolinguistic language. This means that on purely linguistic grounds they would likely be considered to constitute more than one language, but are commonly grouped together as a single language for political or religious reasons (see below). If considered multiple languages, it is unclear how many languages there would be, as the spoken varieties form a dialect chain with no clear boundaries. If Arabic is considered a single language, it is perhaps spoken by as many as 422 million speakers (native and non-native) in the Arab world, making it one of the six most-spoken languages in the world. If considered separate languages, the most-spoken variety would most likely be Egyptian Arabic with 89 million native speakers—still greater than any other Afroasiatic language. Arabic also is a liturgical language of 1.6 billion Muslims. It is one of six official languages of the United Nations.
The Arabic script is written from right to left in a cursive style. In most cases the letters transcribe consonants, or consonants and a few vowels, so most Arabic alphabets are abjads.
The script was first used to write texts in Arabic, most notably the Qurʼān, the holy book of Islam. With the spread of Islam, it came to be used to write languages of many language families, leading to the addition of new letters and other symbols, with some versions, such as Kurdish, Uyghur, and old Bosnian being abugidas or true alphabets. It is also the basis for the tradition of Arabic calligraphy.
The Arabic script has the ISO 15924 codes Arab and 160.