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+ - ± x 3 0. Essential vocabulary for maths. ÷ ∞ ≤ () 2. + - ± ÷ ∞ ≤ () …. You know what they mean – but do you know how to say them?. This mini-module presents common ways of saying twenty essential mathematical signs and symbols .

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Presentation Transcript
slide1

+ - ± x30

Essential vocabulary

for maths

÷ ∞ ≤ () 2

slide2

+ - ± ÷ ∞ ≤() …

You know what they mean

– but do you know how to say them?

This mini-module presents common ways of saying twenty essential mathematical signs and symbols.

slide3

We look at 4 groups of symbols

Operators

+ - x ÷ ±

Equalities and inequalities

= ≠  ≥ > ≤ <

Miscellaneous

0 . ()  

Powers

If you think you already know how to say them go to slide 32 and check the summary

slide4

Operators

+ - x ÷ ±

3 + 8

three plus eight

+

a plus sign

an addition sign

slide5

Operators

+- x ÷ ±

7 - 2

seven minus two

Alternatives: seven subtract two

seven take away two

-

a minus sign

a subtraction sign

slide6

Operators

+ - x ÷ ±

5 x 10

five times ten

Alternative: five multiplied by ten

x

a multiplication sign

a times sign

slide7

Operators

+ - x ÷ ±

3 ÷ 8

three divided by eight

÷

a division sign

slide8

Operators

+ - x ÷ ±

3 ± 8

three plus or minus eight

±

a plus or minus sign

slide9

Question

±

So how would you say ?

slide10

Question

±

So how would you say ?

Answer:minus or plus

slide11

Equalities and inequalities

=≠  ≥ > ≤ <

x= 8

x equals eight

Alternative: x is equal to 8

=

an equality sign

an equals sign

slide12

Equalities and inequalities

=≠  ≥ > ≤ <

y ≠ 4x

y not equal to four x

Alternatives: y is not equal to four x

y does not equal four x

an inequality sign

slide13

Equalities and inequalities

=≠ ≥ > ≤ <

y 2.5

y approximately equals 2.5

Alternative: y is approximately equal to four x

an approximate equality sign

slide14

Equalities and inequalities

=≠ ≥ > ≤ <

x ≥0

xgreater than or equal to zero

Alternative: x is greater than or equal to zero

an inequality sign

a greater than or equal to sign

slide15

Equalities and inequalities

=≠ ≥ > ≤ <

x ≤0

x less than or equal to zero

Alternative: x is less than or equal to zero

an inequality sign

a less than or equal to sign

slide16

Question

So how would you say > ?

slide17

Question

So how would you say > ?

Answer: greater than

slide18

Question

So how would you say > ?

Answer: greater than

and < ?

> and < are strict inequality signs

slide19

Question

So how would you say > ?

Answer: greater than

and < ?

Answer: less than

> and < are strict inequality signs

slide20

Miscellaneous

0. ()  

0

zero

Alternatives: oh

nought

slide21

Miscellaneous

0 . ()  

6.8

six point eight

.

a decimal point

slide22

Miscellaneous

0 . () 

( )

brackets

slide23

Miscellaneous

0 . ()  

roottwo

the square root of four x plus two y

a root sign

a square root sign

slide24

Miscellaneous

0 . ()  

infinity

slide25

Powers

x squared

slide26

Powers

x cubed

slide27

Powers

x to the four

Alternatives: x to the fourth

x to the power four

slide28

Quiz

Can you match the words to the symbols?

approximately equals

less than or equal to

plus or minus

not equal to

greater than

divided by

equals

minus

times

plus

slide29

Quiz

Answers

divided by

greater than

equals

minus

times

approximately equals

not equal to

plus

plus or minus

less than or equal to

slide30

Quiz

Can you match the words to the symbols?

x to the four

x squared

point two

brackets

infinity

root two

x cubed

zero

slide31

Quiz

Answers

point two

x cubed

zero

root two

x to the four

x squared

infinity

brackets

slide33

Further reading

Of course, there is much more …

You can find more useful mathematical vocabulary in your Algebra course book:

A2 Core for Edexcel:

Page ix ( just before chapter 1)

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