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He is stumped on adding and subtracting unlike fractions

2007-01-21 08:35:28 · 18 answers · asked by juls 2 in Science & Mathematics Mathematics

18 answers

get him computer games that will teach him it

2007-01-21 08:37:29 · answer #1 · answered by lemonz 2 · 0 1

First how are his basics? Has he memorized the basic addition/ subtraction/ multiplication/ division tables? If he has to struggle with 3x7 or 54 / 9 then more complicated things like fractions will be nearly impossible. These basics should be memorized, not something he can "figure out" when needed. Go through the tables (1x1 up to 10x10 and 1/1 up to 100/10, as well as the addition and subtraction if needed)) until he can do all 100 equations in each in 5 minutes or less.)

Then make sure he understand what fractions are, how 3/8 = 9/24 and 5/6 = 20/24 -- different names for the same amounts. Using a pizza analogy with lots of slices may help, since it can help him visualize what the fractions actually mean.

And work at it. This isn't easy stuff to understand the first or second or third time you try to explain it.

2007-01-21 16:55:48 · answer #2 · answered by Peter_AZ 7 · 0 0

Make math fun for children, and that's how they get better. How I got better was computer games, everyone loves those! Find some fun addtion and subtracting games that make it fun. Get him workbooks filled with fun! I know he's 12, but before he even starts middle school, he will need to know his addtion and subtracting, or he'll have a difficult time. The best option is computer games, which I had a blast. Each day, let him do some workbooks for 15 minutes or a computer game. This should boost him up and each two weeks, give him a little test (time test) and see how well he does. Hopefully, he will improve, but if not, keep at it! Children do soon learn...sooner or later.

2007-01-21 16:40:52 · answer #3 · answered by theRose 1 · 0 0

Well, I'm 12 and I'm doing that. Unlike fractions are easy. U subtract the numerator from the other numerator and subtract the denominator from the denominator.

2007-01-21 16:40:42 · answer #4 · answered by Linda W 2 · 0 1

Use pizza or pie to show him how fractions can be added or subtracted. Show him that they have to have a common base so you have to cut the slices so that they are the same size as other fraction's base.

2007-01-21 16:40:28 · answer #5 · answered by Will Z. 3 · 0 0

Manipulatives are a great way to physically show him the putting together and taking away of objects. Try counting beans, legos or some small toy he has plenty of. Make it fun; if its not fun then that's when the learning STOPS!

2007-01-21 16:40:57 · answer #6 · answered by Ernimay 4 · 0 0

Ask his teacher how he is going about teaching the class and use different variables of what he's doing. You need to be in sync with what the teacher is trying to teach. Ask him for help with helping your son first.

2007-01-21 16:38:38 · answer #7 · answered by linda23155 1 · 0 0

candy...and gum...this way he has a reward...
ex. but out 50 startburst....tell him to subtract 50%, 1/2 , or 25 of the starburst...allow him to eat 3 ... keep working

2007-01-21 16:39:00 · answer #8 · answered by His Child 2 · 0 0

a good way to understand fractions is to be able to physically see them. try cutting up oranges into fractions.

2007-01-21 16:39:01 · answer #9 · answered by Heather 6 · 0 0

has you twelve year old been in main stream school or school at all ?!! im not trying to be offensive but by the time they are twelve they are learning simple physics and complex alegebra.you need special help for this child i would think.

2007-01-21 16:38:19 · answer #10 · answered by godidk. 1 · 0 0

Well, all children tend to get quite impatient. So be patient with them. And if they get mad say, "well, if you keep this behavior up I wont help you any more, so I advise you to ditch the attitude", or somthing like that!

2007-01-21 16:40:42 · answer #11 · answered by Allie 2 · 0 0

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