Seed Dispersal

Seed Dispersal book cover

Seed Dispersal

Author(s): David R. Murray

  • Publisher: Academic Press Inc
  • Publication Date: 13 Jan. 1987
  • Language: English
  • Print length: 322 pages
  • ISBN-10: 9780125119009
  • ISBN-13: 9780125119009

Book Description

Seed Dispersal focuses on the mechanics and processes involved in seed dispersal, including its implications in ecology, animal behavior, plant and animal biogeography, speciation, and evolution. The selection first elaborates on the aerial motion of seeds, fruits, spores, and pollen and seed dispersal by water. Discussions focus on seed dispersal by rain, river, and flood, effective seed dispersal by ocean currents compared to other vectors, aerodynamic forces and their effects, and launching and release mechanisms. The text then takes a look at seed dispersal syndromes in Australian Acacia, including inference of dispersal syndromes, seed dispersal syndromes, ecological consequences of seed dispersal, and evolutionary derivation of dispersal syndromes. The publication ponders on seed dispersal by fruit-eating birds and mammals, rodents as seed consumers and dispersers, and seed dispersal in relation to fire. Topics include fire as a dispersal vector, long distance dispersal, granivorous rodents and the fates of seeds, determinants of the fate path, population ecology of seed dispersal, and foraging for fruits. The selection is a valuable reference for researchers interested in the factors involved in seed dispersal.

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Bringing Out the Algebraic Character of Arithmetic: From Children's Ideas To Classroom Practice

Bringing Out the Algebraic Character of Arithmetic: From Children's Ideas To Classroom Practice book cover

Bringing Out the Algebraic Character of Arithmetic: From Children's Ideas To Classroom Practice

Author(s): Analucia D. Schliemann (Author), David W. Carraher (Author), Barbara M. Brizuela (Author)

  • Publisher: Routledge
  • Publication Date: 17 Aug. 2006
  • Edition: 1st
  • Language: English
  • Print length: 150 pages
  • ISBN-10: 0805858733
  • ISBN-13: 9780805858730

Book Description

Bringing Out the Algebraic Character of Arithmetic contributes to a growing body of research relevant to efforts to make algebra an integral part of early mathematics instruction, an area of studies that has come to be known as Early Algebra. It provides both a rationale for promoting algebraic reasoning in the elementary school curriculum and empirical data to support it.

The authors regard Early Algebra not as accelerated instruction but as an approach to existing topics in the early mathematics curriculum that highlights their algebraic character. Each chapter shows young learners engaged in mathematics tasks where there has been a shift away from computations on specific amounts toward thinking about relations and functional dependencies. The authors show how young learners attempt to work with mathematical generalizations before they have learned formal algebraic notation.

The book, suitable as a text in undergraduate or graduate mathematics education courses, includes downloadable resources with additional text and video footage on how students reason about addition and subtraction as functions; on how students understand multiplication when it is presented as a function; and on how children use notations in algebraic problems involving fractions. These three videopapers (written text with embedded video footage) present relevant discussions that help identify students’ mathematical reasoning. The printed text in the book includes transcriptions of the video episodes in the CD-ROM.

Bringing Out the Algebraic Character of Arithmetic is aimed at researchers, practitioners, curriculum developers, policy makers and graduate students across the mathematics education community who wish to understand how young learners deal with algebra before they have learned about algebraic notation.

Editorial Reviews

Review

“This book is a rich resource for those involved in teaching and learning of algebra, particularly at the elementary level. Recommended for university libraries, curriculum developers, and researchers engaged in teaching and learning of algebra. Summing Up: Highly recommended.”

-CHOICE, May 2007

About the Author

Analúcia D. Schliemann, David W. Carraher and Bárbara M. Brizuela

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