In this groundbreaking book, Tomasello presents a comprehensive usage-based theory of language acquisition. Drawing together a vast body of empirical research in cognitive science, linguistics, and developmental psychology, Tomasello demonstrates that we don't need a self-contained "language instinct" to explain how children learn language. Their linguistic ability is interwoven with other cognitive abilities.

The author presents a comprehensive usage-based theory of language acquisition, based on evidence that children possess a linguistic ability interwoven with other cognitive abilities, rather than a self-contained 'language instinct'.

The author presents a comprehensive usage-based theory of language acquisition, based on eidence that children possess a linguistic ability interwoven with other cognitive abilities, rather than a self-contained 'language instinct'.

You can use this book to design a house for yourself with your family; you can use it to work with your neighbors to improve your town and neighborhood; you can use it to design an office, or a workshop, or a public building. And you can use it to guide you in the actual process of construction. After a ten-year silence, Christopher Alexander and his colleagues at the Center for Environmental Structure are now publishing a major statement in the form of three books which will, in their words, "lay the basis for an entirely new approach to architecture, building and planning, which will we hope replace existing ideas and practices entirely." The three books are The Timeless Way of Building, The Oregon Experiment, and this book, A Pattern Language. At the core of these books is the idea that people should design for themselves their own houses, streets, and communities. This idea may be radical (it implies a radical transformation of the architectural profession) but it comes simply from the observation that most of the wonderful places of the world were not made by architects but by the people. At the core of the books, too, is the point that in designing their environments people always rely on certain "languages," which, like the languages we speak, allow them to articulate and communicate an infinite variety of designs within a forma system which gives them coherence. This book provides a language of this kind. It will enable a person to make a design for almost any kind of building, or any part of the built environment. "Patterns," the units of this language, are answers to design problems (How high should a window sill be? How many stories should a building have? How much space in a neighborhood should be devoted to grass and trees?). More than 250 of the patterns in this pattern language are given: each consists of a problem statement, a discussion of the problem with an illustration, and a solution. As the authors say in their introduction, many of the patterns are archetypal, so deeply rooted in the nature of things that it seemly likely that they will be a part of human nature, and human action, as much in five hundred years as they are today.

The United States is formally represented around the world by approximately 14,000 Foreign Service officers and other personnel in the U.S. Department of State. Roughly one-third of them are required to be proficient in the local languages of the countries to which they are posted. To achieve this language proficiency for its staff, the State Department's Foreign Service Institute (FSI) provides intensive language instruction and assesses the proficiency of personnel before they are posted to a foreign country. The requirement for language proficiency is established in law and is incorporated in personnel decisions related to job placement, promotion, retention, and pay. A Principled Approach to Language Assessment: Considerations for the U.S. Foreign Service Institute evaluates the different approaches that exist to assess foreign language proficiency that FSI could potentially use. This report considers the key assessment approaches in the research literature that are appropriate for language testing, including, but not limited to, assessments that use task-based or performance-based approaches, adaptive online test administration, and portfolios.

Construction Grammar explains how knowledge of language is organized in speakers' minds. The central and radical claim of Construction Grammar is that linguistic knowledge can be fully described as knowledge of constructions, which are defined as symbolic units that connect a linguistic form with meaning.

Communication