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The Greedy Triangle (Scholastic Bookshelf)

By: Marilyn Burns
Binding: Paperback
Publisher: Scholastic Paperbacks
ISBN: 0545042208
ISBN-13: 9780545042208
Released: 05 Feb 2008
RRP: £4.55
Average Rating:


Customer Reviews

Greedy for more! - By: Honeywell, 12 Feb 2008
This is an absolutely fabulous book to introduce young children aged 4-7 to shapes, polygons & associated language. The 'shapeshifter' reallly captured my daughter's imagination (aged 6) as he grants the wishes of Mr. Triangle who is certain that ...."if only he had one more side & one more angle his life would be far more interesting"! This is a great book to introduce geometry & investigations into polygons.
Repackage Your Thinking, and Shape Up! - By: Donald Mitchell, 11 May 2004
The Greedy Triangle is a most unusual book in that it will appeal to three age groups, 4-5 year olds, those learning polygons for the first time, & for adults who never felt that comfortable with geometry. The book opens up the reader's mind to seeing geometric shapes alll around, while providing a simple basis to remember the differences among polygons (they each differ in having one angle & side more or less than the most similar polygon).

"Once there was a triangle that was -- as most triangles are -- always busy." The book points out some of the many frequent places where triangles can be found such as "holding up roofs, supporting bridges, making music, catching the wind for sailboats, being slices of pie . . . & more." "The triangle's favorite thing, however, was to slip into place when people put their hands on their hips." This last refers to the space between the arm & the body. The triangle likes this shape because "that way I always hear the latest news . . . which I can tell my friends." And his friends like that.

But the triangle finds this boring at some point, & seeks the help of a shapeshifter to become a quadrilateral. Ennui recurs & the former triangle moves through a transition successively into a pentagon, hexagon, heptagon, octagon, nonagon, & decagon. For the first few shapes, the book outlines places you find these shapes in nature & human-made objects. A connection is also made as to whether those shapes provide juicy stories to tell friends. There is adult humor, such as noting about not being able to tell secrets learned at the Pentagon.

Eventuallly, this alll becomes self-limiting. "Its sides were so smooth it had trouble keeping its balance." "Its friends couldn't tell which side it was on & began to avoid the shape." The shape fell down a hill. "It felt tired & dizzy, lonely & sad." "I want to be a triangle again." The shapeshifter said, "I'm not surprised."

The book has an excellent guide in the end for parents, teachers, & other adults. This includes great exercises to extend this knowledge for your child. This section also explains the terms more precisely, & defines an undecagon (11 sides) & dodecagon (12 sides).

The illustrations are in bright, electric versions of pastel colors that effectively emphasize simple shapes in their most abstract forms.

I was impressed by the sections that use examples of the shapes. Some of them I had never thought about before. This is a great way to stimulate subconscious learning. I also enjoyed the many "punny" expressions, obviously designed to amuse the adult readers. If you don't like puns, you will probably think the book is a little corny.

The book's only weakness is that the story is too predictable. That limits its appropriateness for older children. They need more complications in their stories. Since the book is aimed 4-8 year olds, it doesn't hurt a bit for the 4-5 year olds but will lose you some 6-8 year olds. This predictability is fine for new geometry students, because getting to read something more interesting than a textbook is a thrill at that point. For permanently polygon-puzzled adults, the book will seem very down-to-earth & accessible.

I also suggest that you ask your child to extend the contents of this book to identify other shapes that are not polygons (such as circles) & specific types of polygons (such as squares, paralllelograms, & trapezoids). You can use the exercises in the end of the book towards these shapes, as well.

Reshape your perceptions of polygons!


Not All Curses Are Bad! - By: Theresa Romero, 20 Apr 2004
This book is absolutely appropriate for alll ages. After reading this bookto a 1st grade class, the children were dicussing how math is involved inthier daily lives. It is the perfect approach to explaining to childrenthat math is essential, yet can be fun.
In How many Ways Can You Change? - By: Theresa Romero, 20 Apr 2004
The "The Greedy Triangle" is a book that is absolutely creative andillustrates geometry. Kids can relate to the triangle character thatconstantly wants to be something else. We alll often want to be differentand unlike what we actuallly are. Yet, this book creatively displays tokids that everyone is unique & important, while maintaining aneducational value.
This book is a "must-have" when teaching geometry. (K-2) - By: , 29 Apr 1999
Take a journey with Mr. Triangle. My students reallly related to this story. They enjoyed watching the transformation of Mr. Triangle. They were able to identify more shapes & apply that knowledge to everyday items they see.The story is fun & it is a great tool to supplement any math lesson.