The Usborne Illustrated Dictionary of Math

130 Pages·2004·15.53 MB·English

by  Tori Large, Kirsteen Rogers, Adam Constantine

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DIC IONARY
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WITH RECOMMENDED WEBSITES
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THE USBORNE
ILLUSTRATED
.DICTIONARY
OF

MATH

Tori Large
Designed and illustrated by Adam Constantine
Edited by Kirsteen Rogers

Cover design: Russell Punter

Consultants:

Paul Metcalf
(Education Consultant and Principal Moderator)

Wendy Troy
(Goldsmith's College, London)

Frances C. Jamieson

Americanization: Carrie Seay

10

WHAT 15 MATH?

Math, or mathematics, is the study of the relationship between
size, shape and quantity, using numbers and symbols. In this
book, math is divided into four sections. The areas covered by
these sections are explained below.

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Numbers

Introduces many different types of numbers, showing how

they are the building blocks of mathematical calculations as

well as being essential tools in everyday life.

Shape, space and measures

Covers the properties and measurements of the many

different shapes and solids around us. Also includes everyday

units of measurement such as length, mass and capacity.

Algebra

Algebra is the branch of math that uses letters and symbols to

represent numbers and express the relationships between them.

This section covers the various methods of simplifying and solving

algebraic equations, including drawing and interpreting graphs.

Handling data

Explains the different ways of collecting and analyzing

information, and how the resulting data can be

displayed in graphs, charts and tables.

CON TEN TS

CONTENTS

4
Internet links

Numbers
Algebra

6
Numbers
75
Algebra

12
Sets
76
Basic algebra

14
Arithmetic
79
Equations
17
Fractions
80
Algebraic graphs
19
Decimals
85
Quadratic equations
21
Exponents and
87
Simultaneous equations
scientific notation
90
Inequalities

24
Ratio and proportion
92
Functions
27
Percentages
94
Information from graphs

Shape, space and measures
Handling data

30
Geometry
96
Data
32
Angles
100
Averages
34
Polygons
102
Measures of spread

40
Solids
105
Representing data
42
Symmetry
112
Probability

43
Transformation
45
Vectors
116
A-Z of money terms
47
Geometric constructions
118
Maths symbols

51
Loci
119
Index

52
Drawing to scale

55
Perimeter and area
58
Volume
60
Trigonometry
65
Circles

66
Calculations involving circles
70
Angles in a circle

72
Measurement
74
Time

INTERNET LINKS

INTERNET LINKS

For each topic in this book, we have chosen some of the most
interesting and exciting websites where you can find out more about
the subject, or practice using what you have learned. To visit the sites,
go to the Usborne Quicklinks Website at www.usborne-quicklinks.tom
and type the keywords "math dictionary." There you will find links fo
click on to take you to all the sites.

Here are some of the things you can do on the
websites we recommend:

• find math puzzles, guizzes and games to test
your skill and improve your performance

• take a visual tour of the universe from outer
space to the innermost parts of an atom, using
math terms to express the vast distance traveled

control a car by altering the magnitude and
direction of vectors

• ;check your progress with online worksheets
and have your answers checked in an instant

• learn how to use mental math tricks to
perform difficult calculations in your head

• find further examples and explanations to

help you explore deeper into a topic area

How.to access,the websites
For links to the websites recommended ffrr
each fopi.c in t his book, ~~~·Jo the Usbor~~
Quicklinks Yl/ebsite at www.usborne-

qaick•Hnks:~om and enter the,keywords
·,)tiath: