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Building the Foundation: Whole Numbers in the Primary Grades: The 23rd ICMI Study

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Book Series: New ICMI Study Series ISSN: 1387-6872 ISBN: 9783319635545 9783319635552 Year: Pages: 536 DOI: https://doi.org/10.1007/978-3-319-63555-2 Language: English
Publisher: Springer Grant: International Commission on Mathematical Instruction (ICMI); International Mathematical Union (IMU)
Subject: Education --- Mathematics
Added to DOAB on : 2018-06-22 15:48:51
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This twenty-third ICMI Study addresses for the first time mathematics teaching and learning in the primary school (and pre-school) setting, while also taking international perspectives, socio-cultural diversity and institutional constraints into account. One of the main challenges of designing the first ICMI primary school study of this kind is the complex nature of mathematics at the early level. Accordingly, a focus area that is central to the discussion was chosen, together with a number of related questions. The broad area of Whole Number Arithmetic (WNA), including operations and relations and arithmetic word problems, forms the core content of all primary mathematics curricula. The study of this core content area is often regarded as foundational for later mathematics learning. However, the principles and main goals of instruction on the foundational concepts and skills in WNA are far from universally agreed upon, and practice varies substantially from country to country. As such, this study presents a meta-level analysis and synthesis of what is currently known about WNA, providing a useful base from which to gauge gaps and shortcomings, as well as an opportunity to learn from the practices of different countries and contexts.

Physical (A)Causality: Determinism, Randomness and Uncaused Events

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Book Series: Fundamental Theories of Physics ISSN: 0168-1222 ISBN: 9783319708140 9783319708157 Year: Volume: 192 Pages: 219 DOI: https://doi.org/10.1007/978-3-319-70815-7 Language: English
Publisher: Springer Grant: OpenAIRE
Subject: Physics (General)
Added to DOAB on : 2018-06-29 14:42:45
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This book addresses the physical phenomenon of events that seem to occur spontaneously and without any known cause. These are to be contrasted with events that happen in a (pre-)determined, predictable, lawful, and causal way.All our knowledge is based on self-reflexive theorizing, as well as on operational means of empirical perception. Some of the questions that arise are the following: are these limitations reflected by our models? Under what circumstances does chance kick in? Is chance in physics merely epistemic? In other words, do we simply not know enough, or use too crude levels of description for our predictions? Or are certain events "truly", that is, irreducibly, random? The book tries to answer some of these questions by introducing intrinsic, embedded observers and provable unknowns; that is, observables and procedures which are certified (relative to the assumptions) to be unknowable or undoable. A (somewhat iconoclastic) review of quantum mechanics is presented which is inspired by quantum logic. Postulated quantum (un-)knowables are reviewed. More exotic unknowns originate in the assumption of classical continua, and in finite automata and generalized urn models, which mimic complementarity and yet maintain value definiteness. Traditional conceptions of free will, miracles and dualistic interfaces are based on gaps in an otherwise deterministic universe.

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