# SHAPING up: The 3rd Dimension

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- SHAPING up: SHAPES with many SIDES. // Think of a Number;2005, p56
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It deals with polygons with more than four sides. The names of these polygons are actually based on the number of sides that they have like pentagon, hexagon, and octagon. It notes that the...

- SHAPING up: SHAPES that STRETCH. // Think of a Number;2005, p66
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It focuses on three-dimensional (3D) shapes that are topologically equivalent. Examples of objects that are topologically equivalent are a coin and a marble, a cup and a doughnut, and a square...

- SHAPING up. // Think of a Number;2005, p50
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It focuses on different shapes. It mentions that although ancient Greeks were not so good with numbers, they were very good at mathematics because they understood shapes. According to the...

- SHAPING up: Footballs and buckyballs. // Think of a Number;2005, p60
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It discusses icosahedrons. Such shape is composed of 20 hexagons and 12 pentagons. A football has the same characteristics although the other panels can be different in terms of shape and...

- The world of MATHS: LOGIC. // Think of a Number;2005, p82
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It focuses on the branch of mathematics called logic. Logic relies on thought rather than numbers or shapes. Solving a problem logically means deducing certain things and then linking the...

- SHAPING up: Round and Round. // Think of a Number;2005, p62
A chapter from the book "Think of a Number. A Fascinating Look at the World of Numbers" is presented. It offers information on circle and its characteristics. It mentions that in ancient Greece, the Greeks found out that a pair of compasses and a straight edge can create other shapes out of a...

- The world of MATHS: Freaky FRACTALS. // Think of a Number;2005, p80
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It focuses on shapes called fractals. Mathematician Benoit Mandelbrot gave the name fractals to endlessly messy shapes in 1975. Mandelbrot created the Mandelbrot set, which is said to be the...

- Where do NUMBERS come from?: You can count on PEOPLE. // Think of a Number;2005, p12
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It tackles the 900 different counting systems adopted by tribes in Papua New Guinea as well as that of the ancient Babylonians. It notes that many of these tribes count past their fingers and do...

- Where do NUMBERS come from?: Making a mark. // Think of a Number;2005, p14
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It discusses the counting system devised by ancient Babylonians as they counted beyond their hands. It presents information on the clay tokens that they used as record of deals and how they kept...