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The History of Astronomy: A Very Short Introduction
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The History of Astronomy: A Very Short IntroductionThis is a fascinating introduction to the history of Western astronomy, from prehistoric times to the origins of astrophysics in the mid-nineteenth century. Historical records are first found in Babylon and Egypt, and after two millennia the arithmetical astronomy of the Babylonians merged with the Greek geometrical approach to culminate in the Almagest of Ptolemy. This legacy was transmitted to the Latin West via Islam, and led to Copernicus's claim that the Earth is in motion. In justifying this Kepler converted astronomy into a branch of dynamics, leading to Newton's universal law of gravity.
 
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Tags: astronomy, claim, Copernicus, Earth, justifying
Combinatorics and Reasoning: Representing, Justifying and Building Isomorphisms (Mathematics Education Library)
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Combinatorics and Reasoning: Representing, Justifying and Building Isomorphisms (Mathematics Education Library)Combinatorics and Reasoning: Representing, Justifying and Building Isomorphisms (Mathematics Education Library)

Combinatorics and Reasoning: Representing, Justifying and Building Isomorphisms is based on the accomplishments of a cohort group of learners from first grade through high school and beyond, concentrating on their work on a set of combinatorics tasks. By studying these students, the editors gain insight into the foundations of proof building how reasoning that takes the form of proof evolves with young children and discusses the conditions for supporting student reasoning.
 
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Tags: Isomorphisms, proof, Combinatorics, reasoning, Building, Justifying, Reasoning