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The Three Rs
The three Rs (as in the letter ''R'') are three basic skills taught in schools: reading, writing and arithmetic (usually said as "reading, 'riting, and 'rithmetic"). The phrase appears to have been coined at the beginning of the 19th century. The term has also been used to name other triples (see Other uses). Origin and meaning The skills themselves are alluded to in St. Augustine's '' Confessions'': 'learning to read, and write, and do arithmetic'. The phrase is sometimes attributed to a speech given by Sir William Curtis circa 1807: this is disputed. An extended modern version of the three Rs consists of the "functional skills of literacy, numeracy and ICT". The educationalist Louis P. Bénézet preferred "to read", "to reason", "to recite", adding, "by reciting I did not mean giving back, verbatim, the words of the teacher or of the textbook. I meant speaking the English language."L. P. Benezet, "The Teaching of Arithmetic I, II, III: The Story of an Experiment," Journ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Letter R
R, or r, is the eighteenth letter of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ''ar'' (pronounced ), plural ''ars'', or in Ireland ''or'' . The letter is the eighth most common letter in English and the fourth-most common consonant (after , , and ). The letter is used to form the ending "-re", which is used in certain words such as ''centre'' in some varieties of English spelling, such as British English. Canadian English also uses the "-re" ending, unlike American English, where the ending is usually replaced by "-er" (''center''). This does not affect pronunciation. Name The name of the letter in Latin was (), following the pattern of other letters representing continuants, such as F, L, M, N and S. This name is preserved in French and many other languages. In Middle English, the name of the letter changed from to , following a pattern exhibited in many ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sustainability
Specific definitions of sustainability are difficult to agree on and have varied in the literature and over time. The concept of sustainability can be used to guide decisions at the global, national, and individual levels (e.g. sustainable living). Sustainability is commonly described as having three dimensions (also called pillars): environmental, economic, and social. Many publications state that the environmental dimension (also called "planetary integrity" or "ecological integrity") is the most important, and, in everyday usage, "sustainability" is often focused on countering major environmental problems, such as climate change, loss of biodiversity, loss of ecosystem services, land degradation, and air and water pollution. Humanity is now exceeding several "planetary boundaries". A closely related concept is that of sustainable development, and the terms are often used synonymously. However, UNESCO distinguishes the two thus: "''Sustainability'' is often thought of as a lon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trivium (education)
The trivium is the lower division of the seven liberal arts and comprises grammar, logic, and rhetoric. The trivium is implicit in ''De nuptiis Philologiae et Mercurii'' ("On the Marriage of Philology and Mercury") by Martianus Capella, but the term was not used until the Carolingian Renaissance, when it was coined in imitation of the earlier quadrivium. Grammar, logic, and rhetoric were essential to a classical education, as explained in Plato's dialogues. The three subjects together were denoted by the word ''trivium'' during the Middle Ages, but the tradition of first learning those three subjects was established in ancient Greece. Contemporary iterations have taken various forms, including those found in certain British and American universities (some being part of the Classical education movement) and at the independent Oundle School in the United Kingdom. Etymology Etymologically, the Latin word trivium means "the place where three roads meet" (tri + via); hence, the subje ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Traditional Education
Traditional education, also known as back-to-basics, conventional education or customary education, refers to long-established customs that society has traditionally used in schools. Some forms of education reform promote the adoption of progressive education practices, and a more holistic approach which focuses on individual students' needs; academics, mental health, and social-emotional learning. In the eyes of reformers, traditional teacher-centered methods focused on rote learning and memorization must be abandoned in favor of student centered and task-based approaches to learning. Depending on the context, the opposite of ''traditional education'' may be progressive education, modern education (the education approaches based on developmental psychology), or alternative education. Purposes The primary purpose of traditional education is to continue passing on those skills, facts, and standards of moral and social conduct that adults consider to be necessary for the next generat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Standards Based Education Reform
Education reform in the United States since the 1980s has been largely driven by the setting of academic standards for what students should know and be able to do. These standards can then be used to guide all other system components. The SBE (standards-based education) reform movement calls for clear, measurable standards for all school students. Rather than norm-referenced rankings, a standards-based system measures each student against the concrete standard. Curriculum, assessments, and professional development are aligned to the standards. Outcomes-based education Standards are an evolution of the earlier OBE (outcomes-based education) which was largely rejected in the United States as unworkable in the 1990s, and is still being implemented by some and abandoned by other governments. In contrast, the more modest "standards" reform has been limited to the core goals of the OBE programs: * the creation of curriculum frameworks which outline specific knowledge or skills which st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
3R (other)
3R or three Rs may refer to: * The three Rs, a widely used abbreviation for the basic elements of a primary school curriculum: ''reading, 'riting (writing), and 'rithmetic (arithmetic)'' * The three Rs, a widely used abbreviation for the waste management hierarchy: ''reduce, reuse, and recycle'' * The three Rs, an abbreviation for consumer remedies under Australian Consumer Law when consumer guarantees of goods are not satisfied: ''refund, replace, and repair'' * The three Rs (animal research), principles for ethical use of animals in testing: replacement, reduction, refinement * ''The 3Rs'', an experimental short film by David Lynch * 3R (optical regenerator), an optical communications repeater that performs reamplification, reshaping, and retiming * Intelsat 3R, a former communications satellite * Yaesu VX-3R, an ultra-compact dual-band amateur radio transceiver * British Rail Class 206, Southern Region designation 3R from 3-car Reading Line stock * 3R (print size), a standard c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Three Rs (animal Research)
The Three Rs (3Rs) are guiding principles for more ethical use of animals in product testing and scientific research. They were first described by W. M. S. Russell and R. L. Burch in 1959.Russell, W.M.S. and Burch, R.L., (1959). ''The Principles of Humane Experimental Technique'', Methuen, London.A digital version of the Principles may be accessed for free on thwebsiteof Johns Hopkins University's Center for Alternatives to Animal Testing (CAAT). The 3Rs are: #Replacement: methods which avoid or replace the use of animals in research #Reduction: use of methods that enable researchers to obtain comparable levels of information from fewer animals, or to obtain more information from the same number of animals. #Refinement: use of methods that alleviate or minimize potential pain, suffering or distress, and enhance animal welfare for the animals used. The 3Rs have a broader scope than simply encouraging alternatives to animal testing, but aim to improve animal welfare and scientif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal Research
Animal testing, also known as animal experimentation, animal research, and ''in vivo'' testing, is the use of non-human animals in experiments that seek to control the variables that affect the behavior or biological system under study. This approach can be contrasted with field studies in which animals are observed in their natural environments or habitats. Experimental research with animals is usually conducted in universities, medical schools, pharmaceutical companies, defense establishments, and commercial facilities that provide animal-testing services to the industry. The focus of animal testing varies on a continuum from pure research, focusing on developing fundamental knowledge of an organism, to applied research, which may focus on answering some questions of great practical importance, such as finding a cure for a disease. Examples of applied research include testing disease treatments, breeding, defense research, and toxicology, including cosmetics testing. In edu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal Welfare
Animal welfare is the well-being of non-human animals. Formal standards of animal welfare vary between contexts, but are debated mostly by animal welfare groups, legislators, and academics. Animal welfare science uses measures such as longevity, disease, immunosuppression, behavior, physiology, and reproduction, although there is debate about which of these best indicate animal welfare. Respect for animal welfare is often based on the belief that nonhuman animals are sentient and that consideration should be given to their well-being or suffering, especially when they are under the care of humans. These concerns can include how animals are slaughtered for food, how they are used in scientific research, how they are kept (as pets, in zoos, farms, circuses, etc.), and how human activities affect the welfare and survival of wild species. There are two forms of criticism of the concept of animal welfare, coming from diametrically opposite positions. One view, held by some think ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reduce, Reuse, Recycle
Waste hierarchy is a tool used in the evaluation of processes that protect the environment alongside resource and energy consumption from most favourable to least favourable actions. The hierarchy establishes preferred program priorities based on sustainability. To be sustainable, waste management cannot be solved only with technical end-of-pipe solutions and an integrated approach is necessary. The waste management hierarchy indicates an order of preference for action to reduce and manage waste, and is usually presented diagrammatically in the form of a pyramid. The hierarchy captures the progression of a material or product through successive stages of waste management, and represents the latter part of the life-cycle for each product. The aim of the waste hierarchy is to extract the maximum practical benefits from products and to generate the minimum amount of waste. The proper application of the waste hierarchy can have several benefits. It can help prevent emissions o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automatic Programming
In computer science, the term automatic programming identifies a type of computer programming in which some mechanism generates a computer program to allow human programmers to write the code at a higher abstraction level. There has been little agreement on the precise definition of automatic programming, mostly because its meaning has changed over time. David Parnas, tracing the history of "automatic programming" in published research, noted that in the 1940s it described automation of the manual process of punching paper tape. Later it referred to translation of high-level programming languages like Fortran and ALGOL. In fact, one of the earliest programs identifiable as a compiler was called Autocode. Parnas concluded that "automatic programming has always been a euphemism for programming in a higher-level language than was then available to the programmer." Program synthesis is one type of automatic programming where a procedure is created from scratch, based on mathematic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reading (process)
Reading is the process of taking in the sense or meaning of letters, symbols, etc., especially by sight or touch. For educators and researchers, reading is a multifaceted process involving such areas as word recognition, orthography (spelling), alphabetics, phonics, phonemic awareness, vocabulary, comprehension, fluency, and motivation. Other types of reading and writing, such as pictograms (e.g., a hazard symbol and an emoji), are not based on speech-based writing systems. The common link is the interpretation of symbols to extract the meaning from the visual notations or tactile signals (as in the case of Braille). Overview Reading is typically an individual activity, done silently, although on occasion a person reads out loud for other listeners; or reads aloud for one's own use, for better comprehension. Before the reintroduction of separated text (spaces between words) in the late Middle Ages, the ability to read silently was considered rather remarkable. Major pred ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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