MathSphere Ltd
P.O. Box 1234
Worthing
BN14 7YX
tel: 01903 500606
fax: 01903 505645

Description

With over 90 separate activities, probably the most comprehensive CD available for Year 3 Calculations. Coverage of all the key objectives as stated in the renewed Primary Framework for Mathematics for Knowing and Using Number Facts and Calculating - Year 3.

Great graphics
Captivating full screen graphics with colourful animations make this CD ideal for use on interactive whiteboards or individual computers.

Help files
‘Maths rats’ are used in clear, optional help files, to assist pupils with mental calculations. A great help for the class teacher, including precise explanations and activities to guide children through the introduction to pencil and paper methods of addition and subtraction.

Consolidation

Each activity is highly focussed - concentrating on just one objective. Superb for consolidation of concepts introduced during the whole class teaching time.

A4 print-outs

Easy one-click printouts for most activities makes short-term assessment of children’s achievements straightforward.

 

Screen shots from Calculations Year 3

Separate activities on the CD include:

Revise addition with related vocabulary

• add numbers up to 20 with a number grid
• add 10 to numbers in the nineties
• add two multiples of 10 crossing 100
• add a 1-digit number to 2-digits

Secure knowledge and recall of addition facts

• addition facts to 20

• which two numbers have a total of…?
• add 9 
• add 11
• pairs of multiples of 5 that make 100
• pairs of multiples of 100 that make 1000

Further knowledge and recall of addition

• add 1-digit to a 3-digit number
• add 10 to any 2 or 3-digit number
• pairs of 100s that make 1000
• add two multiples of 100 crossing 1000
• make the next multiple of 100
• add 100 to any 3-digit number
• mentally add any pair of 2-digit numbers

Apply addition strategies

• revise putting larger numbers first
• revise looking for pairs that make 10
• add two teen numbers
• what must I add to … to make …?
• symbols to stand for unknown numbers
• add 19
• add 21

Further addition strategies

• find one or two more numbers to make 200
• find the missing number
• add 3 numbers to make 50
• shopping
• add 2-digits to a multiple of 100
• add 2-digits to a multiple of 10
• add two 2-digit numbers

Develop and refine written methods for addition

• written methods: counting on (1)
• written methods: counting on (2)
• add most significant digit first (1)
• add most significant digit first (2)
• add least significant digit first

Revise subtraction with related vocabulary

• take away 1-digit from 2-digits
• take 1-digit from 2-digits
• 2-digits subtract 1-digit
• subtract 1-digit from 2-digits

Secure knowledge and recall of subtraction facts

• subtraction facts to 20
• subtract two 2-digit numbers
• subtract 10 from any 2 or 3-digit number

Further knowledge and recall of subtraction

• complete number sentences
• find pairs with a difference of 30
• find pairs with a difference of 29
• subtract any pair of 2-digit numbers

Apply subtraction strategies

• use ‘less than’
• use ‘what is the difference between…?’
• use ‘how much more is…?’
• use the minus sign
• subtracting whole tens
• subtracting two multiples of 100
• subtract a multiple of 10 from a multiple of 100

Further subtraction strategies

• subtract 9 from a 3-digit number
• subtract 11 from a 3-digit number
• subtract 19 from a 3-digit number
• subtract 21 from a 3-digit number
• subtract 1-digit from a 3-digit number
• subtract 1-digit from a multiple of 100
• find a small difference
• check subtraction with addition

Develop and refine written methods for subtraction

• written methods: counting up (1)
• written methods: counting up (2)
• written methods: decomposition

Secure knowledge of doubling and halving

• double numbers to 20
• double multiples of 5
• add near doubles
• know doubles to 20
• know halves

Understanding of multiplication

• multiplication as repeated addition
• use arrays to understand 3x table
• use arrays to understand 5x table
• know that multiplication can be done in any order
• begin to develop written methods for multiplication

Derive and recall multiplication facts

• know 2x table 
• know 5x table 
• know 10x table
• know 3x table 
• know 4x table
• begin to multiply by 6
• double fives up to 50
• halve whole tens
• understand the effect of multiplying by 10
• multiply a single digit by 100
• multiply whole tens

 

Apply division strategies

• share between 3
• how many 5ps make…?
• understand the language of division
• use the division sign
• complete number sentences
• share by 5 with remainders
• find a remainder
• word problems with remainders (rounding down)
• word problems with remainders (rounding up)

Find unit fractions of numbers

• know finding a half is the same as dividing by 2
• know finding a quarter is the same as dividing by 4
• find one fifth

Relate multiplication and division

• multiplication and division corresponding
• check division with multiplication