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Proud mom to ds2 (7/05), ds 1 (born into heaven at 38 weeks 11/03), and 5 more angels (4/02) (7/10) (11/10) (11/12)
As far as the math tutoring goes, I think it's fine that she can't estimate percentages. I assume if she had to teach a student how to do that then she'd learn. 
Originally Posted by Mallory
I can't believe a middle school math tutor doesn't ever have to do percentages.

Proud mom to ds2 (7/05), ds 1 (born into heaven at 38 weeks 11/03), and 5 more angels (4/02) (7/10) (11/10) (11/12)
Originally Posted by trini
As far as the math tutoring goes, I think it's fine that she can't estimate percentages. I assume if she had to teach a student how to do that then she'd learn.

Single mom to Rain (1/93) , grad student, and world traveler
Originally Posted by Pinky Tuscadero
A friend of the family used to be an elementary school teacher. She taught for 33 years and says she loved every minute of it, except for the parts she complains about!
Anyway, my mom loaned her the book The DaVinci code. She said she couldn't get into it, that it was dull. Then she said that honestly she thinks reading is boring. This is not the kind of person I want influencing my children's reading habits. How on earth could reading be boring??? She tutors middle school kids in math now but can't estimate percentage discounts when she's out shopping. How do these people get to be teachers? Suzy 
Originally Posted by DuckyTate
Unfair to judge that book just plain sucks!:
I'll bet she enjoys reading other books. 
breastfeeding, babywearing, homeschooling Heathen parent to my little Wanderer, 7 1/2 , and baby Elfstone, 3/11!
Mom to DS(14), DS(12), DD(9), DS(6), DS (4), and DS(2)
***4***8****13***17***21****26*******35****40
Originally Posted by Pinky Tuscadero
A friend of the family used to be an elementary school teacher. She taught for 33 years and says she loved every minute of it, except for the parts she complains about!
Anyway, my mom loaned her the book The DaVinci code. She said she couldn't get into it, that it was dull. Then she said that honestly she thinks reading is boring. This is not the kind of person I want influencing my children's reading habits. How on earth could reading be boring??? She tutors middle school kids in math now but can't estimate percentage discounts when she's out shopping. How do these people get to be teachers? Suzy 
Originally Posted by Mallory
I can't believe a middle school math tutor doesn't ever have to do percentages.

I went to school with hundreds of elementary education teachers, and all I can say is this: I'm not remotely surprised 
Originally Posted by Pinky Tuscadero
Anyway, my mom loaned her the book The DaVinci code. She said she couldn't get into it, that it was dull. Then she said that honestly she thinks reading is boring. This is not the kind of person I want influencing my children's reading habits. How on earth could reading be boring???
She tutors middle school kids in math now but can't estimate percentage discounts when she's out shopping. 
I can't believe a middle school math tutor doesn't ever have to do percentages. 
Originally Posted by zeldamomma
Actually she could be a better tutor if math doesn't come too easily to her. When I was in college, I had a professor for whom things were very intuitive, and it was awful. He had NO IDEA how to explain how or why to do things. She may do fine figuring percentages on paper.

Originally Posted by Jen123
I
If you say "That dress is 15% off today !! " I have no idea how to figure it. At all. I've tried. I've been taught. It just doesn't stick. Or if you tell me "A generous tip is 20% of the bill"...I can't figure that. 
Single mom to Rain (1/93) , grad student, and world traveler
Originally Posted by trini
teachers can learn and subsequently teach concepts

Originally Posted by Jen123
I gotta be really transparent here....
I cannot figure percentages. If you say " 30% of the people do xyz".... I get that. I know what percent means... "of 100". I get an image in my head of a circle with pie wedges. If you say "That dress is 15% off today !! " I have no idea how to figure it. At all. I've tried. I've been taught. It just doesn't stick. Or if you tell me "A generous tip is 20% of the bill"...I can't figure that. Which is why my dh ...who has a passion for all things numbers...teaches the children math. I agree though...that a math teacher should understand the concept before teaching a child. 
Originally Posted by Charles Baudelaire
I was a cocktail waitress. I can do fifteen percent of anything. It's really easy.
All you have to remember is that all numbers can be broken down into chunks of 10%, 5%, and 1%. Ten percent is the easiest. You move the decimal to the left. For example: If your restaurant bill comes to $267.44, ten percent of that is what you get when you move Mr. Decimal: $26.744, or (more basically), $26.74. Some more examples: Ten percent of $358.33 = $35.833 (or $35.83) Ten percent of $1,999,786.00 = $19,997,860.00 Once you have ten percent, it's really easy to find one percent. Just move the decimal over one more time to the left. Ten percent of $358.33 = $35.833 (or $35.83) One percent of $358.33 = $3.5833 (or $3.58) Ten percent of $10.00 = $1.00 One percent of $10.00 = .10 cents Once you have ten percent, it's also easy to find five percent. Just cut your 10% figure in half, because five is half of ten. Ten percent of $562.24 = $56.224 (or $56.22) Five percent of $56.22 = $28.11 Ten percent of $10.00 = $1.00 Five percent of $10.00 = .50 cents. To get fifteen percent  Take ten percent. Cut it in half. Add it to the original ten percent. Fifteen percent of $10.00 = Ten percent ($1.00) plus five percent (.50 cents) equals $1.50. To get other percents (like, let's say, seventeen percent) Ten percent PLUS Five percent PLUS One percent PLUS One percent. 17% of $10.00 = Ten percent ($1.00) plus Five percent (.50 cents) plus One percent (one cent) plus One percent (one cent) =$1.52 Hope that helps. It's much easier than they taught you in school. 
Single mom to Rain (1/93) , grad student, and world traveler
Originally Posted by Dar
You can always figure 10% by moving a the decimal point one to the left. So, 10% of 70would be 7.0, or 7. If you're just estimating, you can round to the nearest whole number, so 10% of 63 = 6.3, so you round to 6.
If you can find 10%, you can find estimate other percents. To find 20%, find 10% and double it. To find 15%, find 10%, take half of that (5%) and then add 10% and 5%. For something like 29%, find 10%, triple it, and then take a little less. dar 
Originally Posted by Dar
But that's such a wonderful way to do it! The easiest way, IMO. I think you're a closet mathgenius, myself... playing with numbers like that is way people who truly "get" numbers do math. I'm sorry your teacher messed you up... she was probably someone who didn't truly get the way numbers worked, and so wasn't comfortable with the way you manipulated them.
You needed Miquon as a child, I think.... dar 
Originally Posted by Charles Baudelaire
Like you can really do that when you're holding a full tray of tequila shooters.


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