As adults how many times have we argued that you never use Pythagoras's theorem? Do you remember that the square of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides?
However, what we all need to know and use on a daily basis are our times tables: multiplication facts.
You need 7 oranges at 30p loose, or you can buy a bag of 3 oranges for £1.50; 3x7=21 so 30p x7=£2.10 or 3x £1.50=£4.50 and you will end up with 2 spare oranges and packaging.
How many Freddo frogs can I buy if I have £1 and a Freddo is 30p?
It is vital for children to learn their times tables as it gives them the skills and confidence in so many other areas of Maths.
By the end of the Infants, Y2, the children must know the 2, 5 and 10 times tables and in Year 1 count in 2s, 5s and 10s.
By the end of Year 4 the children should know their tables to 12x12. They should have fluent and rapid recall when working with their tables.
By the time the children reach Year 5/6 they need to know their tables so as they can work out their 20, 30 times tables or 1.2 or 0.4 tables for example. Knowing their tables in Upper Key Stage 2 gives them transferable skills in other areas of Maths.
We are lucky at St Giles School to have supportive parents who understand the importance of leaning at home too.
Did you know this about patterns in the times tables?
There are some patterns which can help you remember:
2× is just doubling the number. The same as adding the number to itself.
2×2=4, 2×3=6, 2×4=8, etc.
So the pattern is 2, 4, 6, 8, 10, 12, 14, 16, 18, 20
(And once you remember those, you also know 3×2, 4×2, 5×2, etc., right?)
5× has a pattern: 5, 10, 15, 20, etc. It ends in either 0 or 5.
9× has a pattern, too: 9, 18, 27, 36, 45, 54, 63, 72, 81, 90
Now, notice how the "ones" place goes down: 9,8,7,6, ...? And at the same time, the "tens" place goes up: 1,2,3,...? Well, your hands can help!
Example: to multiply 9 by 8: hold your 8th finger down, and you can count "7" and "2" ... the answer is 72
10× is maybe the easiest of them all ... just put a zero after it.
How to Learn
Your life will be a lot easier when you can simply remember the multiplication tables.
So ... train your memory!
First, use the table above to start putting the answers into your memory.
Then use the Maths Trainer - Multiplication to train your memory, it is specially designed to help you memorise the tables. This is really fun!
Use it a few times a day for about 5 minutes each, and you will learn your tables.
You can test yourself using the times tables test.
But even if you are short of time to sing them when driving around in the car or walking to school. A few minutes here and there can turn a good mathematician into a great mathematician.
And the Free giveaway is a laminated Times Table Square just ask at the office for one!
Thank you to Rod Pierce at mathsisfun.com