[ARCHIVED THREAD] - Order of Operations / Math (Page 1 of 3)
Posted: 9/7/2016 6:55:38 AM EDT
| I'm helping my step daughter with her homework last night and she's doing math. So it's Order of Operations stuff. I was never taught that in school. I graduated high school in 1988. I was never in any advanced classes, actually never even took an algebra class. But my daughter isn't in an advanced class either and she's only in 6th grade. So when did they start teaching this stuff? Is that what is referred to as "new math" ? |
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It is not new, and I am sure there is not an actual answer to your question on when schools started teaching it. The easy way to remember the order is with an acronym like Please Excuse My Dear Aunt Sally. Parentheses, Exponents, Multiplication, Division, Addition, Subtraction.
This is pretty basic math, without it, a large number of equations become impossible since the answers would be different based on which order of operations you use. |
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I'm helping my step daughter with her homework last night and she's doing math. So it's Order of Operations stuff. I was never taught that in school. I graduated high school in 1988. I was never in any advanced classes, actually never even took an algebra class. But my daughter isn't in an advanced class either and she's only in 6th grade. So when did they start teaching this stuff? Is that what is referred to as "new math" ? No, my kiddo started order of operations in 5th. Order of operations is basic pre-algebra as old as math itself. |
| My wife teaches high school math and order of operations is something that she is having to reteach because most of her students don't know how to do it. The sad thing is most of them can't even copy the problems correctly so they're screwed before they even start. |
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I'm helping my step daughter with her homework last night and she's doing math. So it's Order of Operations stuff. I was never taught that in school. I graduated high school in 1988. I was never in any advanced classes, actually never even took an algebra class. But my daughter isn't in an advanced class either and she's only in 6th grade. So when did they start teaching this stuff? Is that what is referred to as "new math" ? Lol virginia. And you guys hate on NY 
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Lol virginia. And you guys hate on NY Quoted:
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I'm helping my step daughter with her homework last night and she's doing math. So it's Order of Operations stuff. I was never taught that in school. I graduated high school in 1988. I was never in any advanced classes, actually never even took an algebra class. But my daughter isn't in an advanced class either and she's only in 6th grade. So when did they start teaching this stuff? Is that what is referred to as "new math" ? Lol virginia. And you guys hate on NY Yep. That crossed my mind too. And I was in Florida for K-5th grade. 
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Something to keep in mind, so your daughter isn't confused.
PEMDAS is great, but it is separated. Parenthesis 1st Exponents 2nd Multiplication AND Division, typically done from left to right, although it doesn't matter if you do all the division and multiplication in the same step Addition AND Subtraction, again, typically done from left to right, but ultimately doesn't matter if all PEMD has been done. Just wanted to clarify that multiplication isn't necessarily done before division, and addition not necessarily before subtraction. But PEMDAS is easier to remember than PEDMSA, and PEDMAS just sounds dirty for some reason. |
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You graduated high school without algebra?  Yep. It wasnt a requirement. The last place I wanted to be was in school and the last thing I wanted to do was take algebra. In high school we only needed two math credits to graduate so I took basic math in both 9th and 10th grade and that was it. |
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That's what my wife said too. How in the world could I forget something like that?  Quoted:
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It's one of the basic building blocks of math. I'm sure they taught you that in school. Yoy just don't remember. V That's what my wife said too. How in the world could I forget something like that? You're they kind of guy that made my thread interesting
http://www.ar15.com/forums/t_1_5/1904858_ARFCOM_Math_Test___.html&page=1 |
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I'm helping my step daughter with her homework last night and she's doing math. So it's Order of Operations stuff. I was never taught that in school. I graduated high school in 1988. I was never in any advanced classes, actually never even took an algebra class. But my daughter isn't in an advanced class either and she's only in 6th grade. So when did they start teaching this stuff? Is that what is referred to as "new math" ? If you graduated in '88, I'll bet you were taught order of operations. You may not have been paying enough attention to realize it, but I'll bet it was taught. I graduated in '86 and order of operation was covered in jr. high. |
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You're they kind of guy that made my thread interesting
http://www.ar15.com/forums/t_1_5/1904858_ARFCOM_Math_Test___.html&page=1 Quoted:
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It's one of the basic building blocks of math. I'm sure they taught you that in school. Yoy just don't remember. V That's what my wife said too. How in the world could I forget something like that? You're they kind of guy that made my thread interesting
http://www.ar15.com/forums/t_1_5/1904858_ARFCOM_Math_Test___.html&page=1 Math is never interesting. Unless you're counting money. |
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Quoted: You laugh, but in undergrad I once worked as a grader for the math department. There were gen ed math classes designed for people who couldn't do algebra. Quoted: Quoted: You graduated high school without algebra? |
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Quoted: Math is never interesting. Unless you're counting money. Quoted: Quoted: Quoted: Quoted: It's one of the basic building blocks of math. I'm sure they taught you that in school. Yoy just don't remember. V That's what my wife said too. How in the world could I forget something like that? You're they kind of guy that made my thread interesting http://www.ar15.com/forums/t_1_5/1904858_ARFCOM_Math_Test___.html&page=1 Math is never interesting. Unless you're counting money. |
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I remember learning a PEMDAS equivalent in a 7th grade pre-algebra class. Only because of the method to help us remember, I'm sure I learned at a minimum multiplication and division before addition and subtraction earlier than that though.
So, sorry, can't blame government on this. |
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Math is never interesting. Unless you're counting money. Quoted:
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It's one of the basic building blocks of math. I'm sure they taught you that in school. Yoy just don't remember. V That's what my wife said too. How in the world could I forget something like that? You're they kind of guy that made my thread interesting
http://www.ar15.com/forums/t_1_5/1904858_ARFCOM_Math_Test___.html&page=1 Math is never interesting. Unless you're counting money. What happens when you run out of fingers and toes? |
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What happens when you run out of fingers and toes? Quoted:
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It's one of the basic building blocks of math. I'm sure they taught you that in school. Yoy just don't remember. V That's what my wife said too. How in the world could I forget something like that? You're they kind of guy that made my thread interesting
http://www.ar15.com/forums/t_1_5/1904858_ARFCOM_Math_Test___.html&page=1 Math is never interesting. Unless you're counting money. What happens when you run out of fingers and toes? I have necklaces full of em. |
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Never designed anything? Quoted:
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It's one of the basic building blocks of math. I'm sure they taught you that in school. Yoy just don't remember. V That's what my wife said too. How in the world could I forget something like that? You're they kind of guy that made my thread interesting
http://www.ar15.com/forums/t_1_5/1904858_ARFCOM_Math_Test___.html&page=1 Math is never interesting. Unless you're counting money. Not really, no. |
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It's one of the basic building blocks of math. I'm sure they taught you that in school. Yoy just don't remember. V FPNI My dad, who is otherwise very good at math, makes the same claim. Completely untrue, of course. He always fails those Facebook math quizzes as a result.
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Order of Operations is not math, it's a generally agreed upon book keeping system. The common PEMDAS system is not a very good one, either, as it is not sufficiently rigid to eliminate questions about its application. As I see it applied, it is used more as a vehicle for riddles.
The best advice I have is to learn the system by rote, and then if she advances, abandon PEMDAS altogether for the sensible implementation of parentheses to make damn certain the equations are clear. I learned a more logical method. If I am faced with that nonsense at work, I'll send it back with instructions to rewrite the equations, I am not going to spend a second on sorting through what amounts to gibberish. In the days of manual typesetting, a method for including equations on a single line of text was needed, along with elimination of as many characters as possible. The computer age also brought a similar requirement, but to save bits of memory instead of typesetting labor, and as can be witnessed today, the makers of hand held calculators do not use a standard, so the user has to relearn the syntax for each device (and software, if programming). |
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Order of Operations is not math, it's a generally agreed upon book keeping system. The common PEMDAS system is not a very good one, either, as it is not sufficiently rigid to eliminate questions about its application. As I see it applied, it is used more as a vehicle for riddles. The best advice I have is to learn the system by rote, and then if she advances, abandon PEMDAS altogether for the sensible implementation of parentheses to make damn certain the equations are clear. I learned a more logical method. If I am faced with that nonsense at work, I'll send it back with instructions to rewrite the equations, I am not going to spend a second on sorting through what amounts to gibberish. In the days of manual typesetting, a method for including equations on a single line of text was needed, along with elimination of as many characters as possible. The computer age also brought a similar requirement, but to save bits of memory instead of typesetting labor, and as can be witnessed today, the makers of hand held calculators do not use a standard, so the user has to relearn the syntax for each device (and software, if programming). Interesting. I read where the computer age made the use of it really take off. And I was out of school before that. |
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Quoted: Yep. It wasnt a requirement. The last place I wanted to be was in school and the last thing I wanted to do was take algebra. In high school we only needed two math credits to graduate so I took basic math in both 9th and 10th grade and that was it. Quoted: Quoted: You graduated high school without algebra? Yep. It wasnt a requirement. The last place I wanted to be was in school and the last thing I wanted to do was take algebra. In high school we only needed two math credits to graduate so I took basic math in both 9th and 10th grade and that was it. Strange, I graduated in '88 as well in Texas and we were required to take Algebra 1 and 2 as well as Geometry. These were basic normal classes, not advanced placement. |
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Interesting. I read where the computer age made the use of it really take off. And I was out of school before that. Quoted:
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Order of Operations is not math, it's a generally agreed upon book keeping system. The common PEMDAS system is not a very good one, either, as it is not sufficiently rigid to eliminate questions about its application. As I see it applied, it is used more as a vehicle for riddles. The best advice I have is to learn the system by rote, and then if she advances, abandon PEMDAS altogether for the sensible implementation of parentheses to make damn certain the equations are clear. I learned a more logical method. If I am faced with that nonsense at work, I'll send it back with instructions to rewrite the equations, I am not going to spend a second on sorting through what amounts to gibberish. In the days of manual typesetting, a method for including equations on a single line of text was needed, along with elimination of as many characters as possible. The computer age also brought a similar requirement, but to save bits of memory instead of typesetting labor, and as can be witnessed today, the makers of hand held calculators do not use a standard, so the user has to relearn the syntax for each device (and software, if programming). Interesting. I read where the computer age made the use of it really take off. And I was out of school before that. I have taken a pile of math courses past high school, and I had never heard of the PEMDAS method until the last ten years or so on this forum. I did not take algebra at the university or college level, so maybe I would have encountered PEMDAS there. In any case I'll stand by my recommendation for writing crystal clear equations freed from any possibility of ambiguity. It's generally not an issue amongst practitioners because they can't afford to leave room for an incorrect interpretation; the equation says what it says, without inane gymnastics to sort out a jumble. |
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Strange, I graduated in '88 as well in Texas and we were required to take Algebra 1 and 2 as well as Geometry. These were basic normal classes, not advanced placement. Quoted:
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You graduated high school without algebra? Yep. It wasnt a requirement. The last place I wanted to be was in school and the last thing I wanted to do was take algebra. In high school we only needed two math credits to graduate so I took basic math in both 9th and 10th grade and that was it. Strange, I graduated in '88 as well in Texas and we were required to take Algebra 1 and 2 as well as Geometry. These were basic normal classes, not advanced placement. Yeah, we needed 3 sciences and 2 maths, or vice versa. But I went to tech school during junior and senior year and that enabled you to drop one of the required credits. So I only had 2 of each, math and science. My tech training has allowed me to make a very good living, well over twice what my wife makes with a bachelors degree. |
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I'm helping my step daughter with her homework last night and she's doing math. So it's Order of Operations stuff. I was never taught that in school. I graduated high school in 1988. I was never in any advanced classes, actually never even took an algebra class. But my daughter isn't in an advanced class either and she's only in 6th grade. So when did they start teaching this stuff? Is that what is referred to as "new math" ? It's been around forever. I did it in 7th grade in like 1994. I've been math retarded pretty much starting with long division in 4th grade
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How about this one...always trips people up. http://i.dailymail.co.uk/i/pix/2016/09/07/10/380205D700000578-3777424-Can_you_get_it_right_This_odd_puzzle_which_appeared_on_Facebook_-a-18_1473242129065.jpg Quoted:
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48/2(9+3) = ? And go... Ah - first class trolling 
2 and 288 How about this one...always trips people up. http://i.dailymail.co.uk/i/pix/2016/09/07/10/380205D700000578-3777424-Can_you_get_it_right_This_odd_puzzle_which_appeared_on_Facebook_-a-18_1473242129065.jpg 16 42 (missed the "x") 1st equation makes the horse 10, so it is not an unknown. the second and third equation, two equations, two unknowns. |
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How about this one...always trips people up. http://i.dailymail.co.uk/i/pix/2016/09/07/10/380205D700000578-3777424-Can_you_get_it_right_This_odd_puzzle_which_appeared_on_Facebook_-a-18_1473242129065.jpg Quoted:
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48/2(9+3) = ? And go... Ah - first class trolling
2 and 288 How about this one...always trips people up. http://i.dailymail.co.uk/i/pix/2016/09/07/10/380205D700000578-3777424-Can_you_get_it_right_This_odd_puzzle_which_appeared_on_Facebook_-a-18_1473242129065.jpg 42? |
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16 1st equation makes the horse 10, so it is not an unknown. the second and third equation, two equations, two unknowns. Quoted:
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How about this one...always trips people up. http://i.dailymail.co.uk/i/pix/2016/09/07/10/380205D700000578-3777424-Can_you_get_it_right_This_odd_puzzle_which_appeared_on_Facebook_-a-18_1473242129065.jpg 16 1st equation makes the horse 10, so it is not an unknown. the second and third equation, two equations, two unknowns. Are you sure? (Check your work, carefully) |