Anno's Mysterious Multiplying Jar

by Mitsumasa Anno

Other authorsMasaichiro Anno (Author)

Hardcover, 1983

Status

Available

Call number

MATH

Genres

Children's Books

Publication

Philomel (1983), 40 pages

Description

Simple text and pictures introduce the mathematical concept of factorials.

User reviews

LibraryThing member kgeorge

This story begin with 1 jar and then when we look inside this jar we find 2 countries each with 3 mountains with 4 walled kingdoms, 5 villages, 6 houses, 7 rooms, 8 shelves, with 9 boxes and 10 jars where the cycle repeats again. The author then uses dots to represent this concept in order to

explain how quickly things multiply. The main concept in this book is factorials. Having used this book in lessons, I have had the students actually calculate the number of mountains in 1 jar. Then the number of walled kingdoms, villages, etc. The students are able to demonstrate the concept of factorials.

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LibraryThing member Bobbi

What a great way to visualize the power of multiplication without overwhelming a child. We first read this book when my child was about five years old and now as he's working on multiplication in math we will revisit the magic jar.

LibraryThing member mathcircle

Delightful way to introduce the idea of factorials to children.

LibraryThing member SarahWilmot

This is a good example of an informational fantasy, because in order to enter the world of this "mysterious multiplying jar," the reader must set aside skepticism and the way things work in our world. However, the authors use a fantasy-type journey to teach students accurate information about

factorial numbers in a simple and easy-to-understand way.

Illustrations: watercolor and ink (?)

(I did not give it a rating, because character and plot, etc. are not applicable in informational books)

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LibraryThing member elgood

Book Summary: this book uses a jar and many things in it to represent factorials. It starts with a jar that contains 1 island that has 2 countries that has 3 mountains that has 4 walled kingdoms that has 5 villages that has 6 houses that has 7 rooms that has 8 shelves that has 8 cupboards that has

9 boxes that has 10 jars. It then represents this concept with dots to show how things can quickly multiply.

Content Summary: factorials, multiplication

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LibraryThing member lquilter

Sort of a surreal picture book in which inside a vase is an island, and on the island are many things, including ultimately the vase ....

A nice concept, but it didn't do as much for me as I'd hoped.

LibraryThing member amartino1208

This book attempts to explain factorials to students with a magically jar that has a world in it. The world breaks into multiple different scenarios where the number of objects get larger. I find the book becomes confusing because at the end if tries to explain the problem and makes it more

difficult. I have taught this concept before and the way the book explained it made me confused. I would not recommend reading this book to help understand factorials better.

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LibraryThing member rdg301library

Anno presents a jar with the ocean in it. In the ocean we find an island. Everything on the island is in multiples. We then see that at the end that there are 3,628,800 jars in the original jar. The author represents the multiples on the remaining pages of the book. He shows the reader that 180

more pages filled with dots would be needed to represent the final number of jars. The author emphasizes the patterns evident in this book with the concept of factorials.

This book could be used as an introduction to the concepts of multiples. One could read this book aloud with a class to activate prior knowledge or build knowledge on the concept. One could also use this book for factorials and representation as well.

Informational Nonfiction
Reading Level: 4.2

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