hani concepts of mathematics: February 2017

Tuesday 14 February 2017

10 Ways We Use Math Everyday

Math is a part of our lives, whether we clean the house, make supper or mow the lawn. Wherever you go, whatever you do, you are using math daily without even realizing it. It just comes naturally.

Chatting on the cell phone

Chatting on the cell phone is the way of communicating for most people nowadays. It's easy, accessible and cost effective. Every one has a cell phone and it requires a basic knowledge of skill and math. You need to know numbers and how they work, and with today's technology you can do basically everything on your cell phone, from talking and faxing to surfing the Internet.

In the kitchen

Baking and cooking requires some mathematical skill as well. Every ingredient has to be measured and sometimes you need to multiply or divide to get the exact amount you need. Whatever you do in the kitchen requires math. Even just using the stove is basic math skills in action.

Gardening:Even doing something as mundane as gardening requires a basic math skill. If you need to plant or sow new seeds or seedlings you need to make a row or count them out or even make holes. So even without thinking you are doing math. Measuring skills is always needed, and calculations of the essence when doing something new in the garden.Arts:When doing any form of art you are using math. Whether you're a sculptor, a painter, a dancer or even just doing a collage for fun, you will need to be able to measure, count and apply basic math to it. Every form of art is co-dependant upon math skills.

Keeping a diary

Keeping a diary has become an essential part of our daily lives. We run from place to place and appointment to appointment. Making appointments and having a time schedule that works for you requires math. Without a diary we will crash and burn. Some people even have to make appointments to take some time out. Math is a much needed skill in today's life.

Planning an outing

Every outing you plan needs your math skill. Whether you go to the beach or the zoo is irrelevant. You will plan your way there and you will use your time wisely, math is your guide that will assist you and help you. When driving you need fuel, oil and water, without it your car will break down. All of these require math.

Banking

Can you imagine going to the bank and not having any idea what you need to do or how to manage your finances. This will cause a huge disaster in your life, and you will be bankrupt within hours.

Planning dinner parties

How about that inevitable dinner party or cocktail that you have to host. Planning is essential, how many guests are attending, what foods are you serving, the ambience of the place where you want to host it and so many other essentials all requiring multiplication, division and subtraction.

Decorating your home

Whether you are painting, doing the flooring or just acquiring new furniture, you need math to make your sums add up. Everything you do inside or outside of your home needs math skills. From accessories to a new swimming pool and putting in new lighting.

Statistics

Every basic thing we use in life consist of history. That means statistics. Taking into account the past and the future, and keeping record of what has been done. Without statistics we won't know what worked and what didn't. It helps us to find balance and structure.

geometrical symbols

Meaning	Example	In Words
Triangle	ABC has 3 equal sides	Triangle ABC has three equal sides
Angle	ABC is 45°	The angle formed by ABC is 45 degrees.
Perpendicular	ABCD	The line AB is perpendicular to line CD
Parallel	EFGH	The line EF is parallel to line GH
Degrees	360° makes a full circle
Right Angle (90°)	is 90°	A right angle is 90 degrees
Line Segment "AB"	AB	The line between A and B
Line "AB"		The infinite line that includes A and B
Ray "AB"		The line that starts at A, goes through B and continues on
Congruent (same shape and size)	ABC DEF	Triangle ABC is congruent to triangle DEF
Similar (same shape, different size)	DEFMNO	Triangle DEF is similar to triangle MNO
Therefore	a=b b=a	a equals b, therefore b equals a

mathemetical symbols

Symbol	Meaning	Example
+	add	3+7 = 10
−	subtract	5−2 = 3
×	multiply	4×3 = 12
/	divide	20/5 = 4
( )	grouping symbols	2(a−3)
[ ]	grouping symbols	2[ a−3(b+c) ]
{ }	set symbols	{1,2,3}
π	pi	A = πr²
∞	infinity	∞ is endless
=	equals	1+1 = 2
	approximately equal to	π 3.14
≠	not equal to	π ≠ 2
< ≤	less than, less than or equal to	2 < 3
> ≥	greater than, greater than or equal to	5 > 1
	square root ("radical")	√4 = 2
°	Degrees	20°
	Therefore	a=b b=a

maths sond lyrics for measurements

Thursday 9 February 2017

song about circles

shapes song- CIRCLES!(works better with the video- see below)

Lyrics

A shape named circle,
Rolled to town,
Said I’m a circle,
And I roll around…
Square and star,
They said, let’s play,
Let’s have a race,
At the park today…

I’m a circle, I’m a circle,
And I’m really, really round,
I’m a circle, I’m a circle,
And I roll around the town…
I’m a circle, I’m a circle,
And I’m really, really round,
I’m a circle, and I’m really fast,
When I’m rolling all around…

The shapes came to,
The starting line,
Ready-set-go,
Is what they chimed,
Circle rolled fast,
Not star nor square,
They weren’t round,
Couldn’t roll anywhere…
Square got stuck,
And so did star,
Circle won,
The race by far…

Well square and star,
They were impressed,
When it came to speed,
Circle was the best…
They each gave circle,
A smiley face,
For being the fastest at their race…

Those 3 nice shapes,
They took a walk,
Looked for more circles,
As they talked…
They saw circles,
No surprise,
They saw circles
With their eyes…

Eyes were round,
Like a bus’s wheels,
Plates were round,
Like an orange that peels,
The earth the moon,
The top of a jar,
All were circles,
Like the wheels of a car!

maths puzzle

puzzle

1. What number should replace the question mark?

Ans: 0.

Sol.
Looking at lines of numbers from the top : 9×8 = 72; 72×8 = 576; 576×8 = 4608;

What number should replace the question mark?

Ans: 55.

Sol.
Each number indicates its position in the grid.
55 indicates row 5 columns 5.