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The beginning of our story begins with nothing, absolutely nothing. Well, there was something. Something we know well, but treat it as nothing. O.
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The beginning of our story begins with nothing, absolutely nothing. Well, there was something. Something we know well, but treat it as nothing. O
Nothing has another name. It's called zero. Zero is something and nothing at the same time. Zero requires nothing. And since there was nothing, zero existed. It also existed without needing someone or some thing to make it O
If zero existed on its own, then a small part of mathematics existed with it. Matter of fact, zero sits right in the middle of mathematics. It’s even called the point of origin O
Mathematics has positive and negative numbers with the power to cancel each other out. Start with a positive 1 and combine that with a negative 1, you have zero. -1 O +1 Math can give an illusion of something when there's nothing.
You might think the easiest way to expand our mathematical universe is to count: 1, 2, 3, 4, 5 and so on. Counting is actually fairly sophisticated. For example, if you see five items and count them by going, "1, 2, 3, 4, 5" you have actually added them up because 5 is the total of all the items. 0, 1, 2 , 3, 4, 5, ... 1 2 3 4 5
A more simple expansion would be to say, "1 and 1 and 1 and 1 and 1 ... You don't have to know how to count or add. 0 1 1 1 1 1 1 1 1 1 1
Before humans knew how to count, they still were able to keep track of their possessions. For example, if a sheepherder had 10 sheep, he would pick up one stone for the first sheep, a second stone for the second sheep, a third stone for the third sheep and so on. He'd place on the stones in a leather pouch. At the end of the day he wanted to see if any sheep was missing, he didn't count them, he opened the pouch and took out one stone for each sheep he saw. If there were any stones left in the pouch, he knew that not all sheep were present, and would go out to look for them. Another word for stone is calculus. So our advance math called "calculus" gets its name from the simplest of math ideas- one to one correspondence. with rocks.
But Let's get back to our mathematical universe. It expands with simple repetition. Of course, the negative counterpart is also being created one at a time to keep it balanced to zero. We can imagine a string of ones emanating from zero -1 -1 -1 -1 0 1 1 1 1 -1 -1 -1 -1 1 1 1 1 ...but to balance the impulse for fast expansion, there ought to be a slow weak attraction force that will pull it all back together. Something like gravity.
When things attract they come together. This action of coming together is called addition. Addition doesn’t always give us larger numbers. Remember when positive and negative amounts cancel. 1 1 1 1 1 1 -1 -1 -1 -1 -1 -1
1 1 1 1 1 1 1 1 The universe to follow will have all kinds of situations where things combine. Adding is an action upon real quantities. For example, three balls collide with five balls. Their quantities are added even if you don’t know what the total is. The mathematical universe doesn’t care that the “answer” is eight. There are eight there whether or not we know that there are. In other words, mathematics does its own math without humans.
Let’s look at more examples of addition in action. Let’s say these fish weigh 1 kilogram each. There are 10 fish on the pan. How much is their combined weight? You might say 10 kilograms. Nothing in nature understands what 10 kilograms is. But the total weight is known as soon as the last fish hits the pan.
Humans, however, often want a symbol to represent weight. Picking up the pan and saying, “These fish feel heavy.” may not be enough. Nowadays people look at the scale and write down “fish weigh 10kg.” But note that “10kg” is not the weight of the fish. The weight of the fish can only be felt but not written down. We can write down 10kg but it doesn’t weight the same as the fish. Now we could use a balance and add rocks until they weigh the same as the fish. If someone asked how heavy were the fish, we could say, “Pick up that bag of rocks and you will know.”
The point here is that we use symbols to represent quantities, but these symbols are not the same as the quantities. The symbol 10kg might be meaningless to most people, but the actual weight of 10kg falling on their heads would not be meaningless. kg, kilogram, lb, pound, ton, g, gram, ounce, oz.
When we write this symbol, “5” it is not the number 5. It is a symbol that some humans recognize as standing for 5 things. It’s more properly called a “numeral.” Somewhere in math education, the symbols for mathematics got confused with as being mathematics. 5 1 1 1 1 1
10 100 What fraction is this? I’m sorry, this is not a fraction. The proper name is called a fractional numeral.
When we stare too much at symbols we begin to believe that the symbols are real. A A C B A D
When we stare too much at symbols we begin to believe that the symbols are real.
Symbols are even representingemotions
When we stare too much at symbols we begin to believe that the symbols are real.
It’s like thinking your name is somehow more real than you are. A family’s name is far less important than the family itself.
e=mc2 is made of symbols for energy, mass and the speed of light, but this is the real e=mc2
Symbols Quiz • How much money is this? $150. • Which is worth more ¥, €, or £? • H2O is water • The formula for water is H2O. • H is hydrogen • H is the symbol for hydrogen • You take someone’s temperature and the thermometer reads, 104oF. That means the person must have a temperature. True/false?
ADDITION • Addition is an easy concept, but there are a few precautions. There’s a cliché which says, “You can’t compare apples to oranges.” Addition has a similar problem. You can’t add apples to oranges to find a total of apples or oranges. However, you can still add them.
A + R = A + R + = ?
The beginning of our story begins with nothing, absolutely nothing. Well, there was something. Something we know well, but treat it as nothing • Nothing has another name. It's called zero. Zero is something and nothing at the same time. Zero requires nothing. And since there was nothing, zero existed. It also existed without needing someone or some thing to make it • If zero existed on its own, then a small part of mathematics existed with it. Matter of fact, zero sits right in the middle of mathematics. • So in our story zero and that small part of mathematics existed when nothing else could. • Math also gives us an illusion of something when there's nothing. For example, give me a million dollars and at the same time give me a debt of a million dollars. The million dollars will look like I'm rich and have tons of possessions. However, because of the million dollar debt, I actually have nothing. The two cancel • Mathematics have positive and negative numbers with the power to cancel each other out. Start with a positive 5 and combine that with a negative 5, you have zero. • In our mathematical universe two quantities can pop into existence and just as easy pop out of existence. • You might think the easiest way to expand our mathematical universe is to count: 1, 2, 3, 4, 5 and so on. Counting is actually fairly sophisticated. For example, if you see five items and count them by going, "1, 2, 3, 4, 5" you have actually added them up because 5 is the total of all the items. A more simple expansion would be to say, "1 and 1 and 1 and 1 and 1 ... You don't have to know how to count.
Before humans knew how to count, they still were able to keep track of their possessions. For example, if a sheepherder had 10 sheep, he would pick up one stone for the first sheep, a second stone for the second sheep, a third stone for the third sheep and so on. He'd place on the stones in a leather pouch. At the end of the day he wanted to see if any sheep was missing, he didn't count them, he opened the pouch and took out one stone for each sheep he saw. If there were any stones left in the pouch, he knew that not all sheep were present, and would go out to look for them. • Another word for stone is calculus. So our advance math called "calculus" gets its name from the simplest of math ideas- one to one correspondence. with rocks. • But Let's get back to our mathematical universe. It expands with simple repetition. Of course, the negative counterpart is also being created one at a time to keep it balanced to zero. We can imagine a string of ones emanating from zero, but to balance the impulse for fast expansion, there ought to be a slow weak attraction force that will pull it all back together. Something like gravity. • When things attract they come together. This action of coming together is called addition. Addition doesn’t always give us larger numbers. Remember when +5 and -5 came together? We got zero. The universe to follow will have all kinds of situations where things combine. Adding is an action upon real quantities. For example, three balls collide with five balls. Their quantities are added even if you don’t know what the total is. The mathematical universe doesn’t care that the “answer” is eight. There are eight there whether or not we know that there are. In other words, mathematics does its own math without humans.
Let’s look at more examples of addition in action. Let’s say these fish weigh 1 kilogram each. There are 10 fish on the pan. How much is their combined weight? You might say 10 kilograms. But remember the fish don’t care, the pan doesn’t care, the universe doesn’t care that the total weight is 10 kilograms. To nature, the total is done as soon as the last fish hits the pan. Addition works on its own. Humans, however, often want a symbol to represent the weight of the fish. Picking up the pan and saying, “These fish feel heavy.” may not be enough. A person may read the scale and write down “fish weigh 10kg.” But note that 10kg is not the weight of the fish. The weight of the fish can only be felt but not written down. We can write down 10kg but it doesn’t weight the same as the fish. Now we could use a balance and add rocks until they weigh the same as the fish. If someone asked how heavy were the fish, we could say, “Pick up that bag of rocks and you will know.” The point here is that we use symbols to represent quantities, but these symbols are not the same as the quantities. The symbol 10kg might be meaningless to most people, but the actual weight of 10kg falling on their heads would not be meaningless. When we write this symbol, “5” it is not the number 5. It is a symbol that some humans recognize as standing for 5 things. Somewhere in math education, the symbols for mathematics got confused with as being mathematics. Here’s a question: What fraction is this? ¾. I’m sorry, this is not a fraction. The proper name is called a fractional numeral. The word, numeral means that it is a symbol that represents a number.
4 inches 10 centimeters + =? If you were building a shelf that needed to be 4 inches high to accommodate a VCR and another 10 centimeters high to accommodate a DVD player, how might you add these quantities? Add just means to combine; it doesn’t mean to convert.
To save time in adding, humans have taken advantage of their ability to see patterns. We have extraordinary ability to see shapes and patterns. If there is no pattern, it’s hard. For example, in 2 seconds, tell me how many sticks have appeared. When numbers are grouped into patterns, we recognize them much faster. This is an old way of counting based on the five fingers of the hand. In groups of 5, it’s much easier to see the total.
Another way we group quantities in order to recognize the number faster
By grouping amounts in easy to recognize quantities, addition is simplified 7 + 6 5 + 5 + 3
6 8 7 Grouping can be done in any way you want to. 6 + 8 + 7 {7} {5} (-1) (+1) 0 1 3 2 6 8 7
Shuffle quantities around 79 + 83 + 77 + 14 80 + 80 + 80 + ?
METER 40 cm + 15 mm = ?
8-3 5 1 1 1 1 In nature addition happens all the time, but so does subtraction. 1 1 1 1
Subtract • Tract = tractor • Tract = traction • Tract = tractor beam • Tract = distract • Tract = retract • Tract = detract
Subtract 8- 3 5 • Sub = under Submarine • Sub = less than subhuman
5- 8 5- 8 -3 How can you take 8 away from 5? 5 + 0 = 5 0 = (3) + (-3) 5 + 3 + (-3) 8 + (-3)
Source of confusion • + (plus) sign • + addition sign • What’s the difference? • + addition sign indicates action of combining. • + (plus) sign is completely different. • - (negative) sign • - subtraction sign • What’s the difference? • - subtraction sign indicates action of taking away. • - (negative) sign is completely different.
+ (plus) sign • The most common meaning is that of direction. - +10o is in the direction of getting hotter
SQUARE METER
Cubic decimeter CUBIC LITER METER
cubic centimeter cubic decimeter milliliter LITER