Introduction
BLOCK ONE
Invariance
Language and Points of View
Reasoning Based on Invariant Properties
Visualising and Representing
BLOCK TWO
Invariance in Measurement
Measuring Areas and Volumes
Geometrical Reasoning
Visualising
BLOCK THREE
Transformations and Invariants
Language and Points of View
Reasoning with Transformation Geometry
Visualising Transformations
BLOCK FOUR
Themes and Structure
Powers, Constructs and Strategies
′Geometry is often given less time in the teaching timetable than
other aspects of mathematics. This book encourages practitioners to
think about and raise its profile, indeed achieving what its title
suggest′ - Primary Practice `This creative, innovative and
fascinating book/CD package is one you "MUST BUY". All prospective,
new and experienced teachers of mathematics can use it to transform
their teaching. All readers can use it to reignite their
fascination with mathematics. This book fosters not only a
curiosity about geometry itself but crucially focuses on how
learners can actively engage in thinking about geometry and its
central key ideas. Symbolically, the book/CD invites readers to
engage actively with it, so that its very style embodies the
approach to thinking about geometry that it advocates. The
structure of the book is helpful in supporting readers who want to
dip into the book for a particular topic or theme and the authors
have interspersed geometric, reflective and pedagogic activities
woven into a rich interplay between the ideas themselves and ways
in which teachers might facilitate learners′ engagement with the
ideas. By making the focus of this book, thinking about geometry,
the authors have highlighted the dimensions of geometric activity
that enable us to engage. Throughout, the emphasis is on meaning
making and the ways in which we visualize, represent, communicate
and reason about geometric ideas. Images abound and the reader is
encouraged to conceive geometry both dynamically and statically.
Communication and meaning making are the essence of any learning
and the authors have been very successful in conveying that
message′ - Professor Sylvia Johnson, Sheffield Hallam
University
"This book contains an amazing collection of geometric problems
that will interest and challenge most readers, though its
pedagogical context is designed primarily for mathematics teachers.
Part of a three-book series written by the Open University′s Centre
for Mathematics Education, it focuses on geometric thinking--what
it means, how to develop it, and how to recognize it. Using
curricular and research documents as a foundation, the book′s
structure thoroughly develops four key ideas of geometric thinking:
invariance, geometric language and points of view, reasoning, and
visualizing and representing. Using a great number of
interesting and clever activities (many provided on the
accompanying CD-ROM), each key idea is developed and discussed
thoroughly, and readers are strongly encouraged to participate
actively as both problem solvers and geometric thinkers. An
additional section discusses the related pedagogical issues
surrounding each key idea, followed by two concluding sections that
provide a unified structure for the four geometric themes and many
teaching strategies that were developed. Again, the book is
exemplary in its provision of rich problems and pedagogical
commentary, offering a welcome perspective on geometrical thinking
that spans the primary through the high school grades. Summing Up:
Highly recommended."
*CHOICE*
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