Math Is Fun Forum

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,385

MNEMONICS.

I remember 3 mnemonics.

1. To determine the inauspicious time (Rahu kaalam) of the day as per Hindu religion. The inauspicious time lasts for 1 1/2 hours starting from 7.30-9AM.

Mother Saw Father Wearing The Turban on Sunday.

Monday-7.30-9AM, Saturday-9-10.30AM, Friday-10.30-12AM, Wednesday-12-1.30PM, Thursday-1.30-3 PM, Tuesday-3-4.30PM, Sunday-4.30-6PM.

2. Spectral class of stars

Oh Be A Fine Girl Kiss Me!

3. Color code in Resistors

B.B.ROY of Great Britain has a Very Good Wife.

Any more mnemonics???

---

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

MathsIsFun

Administrator

Registered: 2005-01-21

Posts: 7,713

Re: MNEMONICS.

The resistor one I remember was naughty !

---

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

NullRoot

Member

Registered: 2007-11-19

Posts: 162

Re: MNEMONICS.

I suppose the one for the planets:
My Very Eager Mother Just Served Us Nine Pizzas

Is defunct now, huh? No Pizza for anyone anymore.

---

Trillian: Five to one against and falling. Four to one against and falling… Three to one, two, one. Probability factor of one to one. We have normality. I repeat, we have normality. Anything you still can’t cope with is therefore your own problem.

pi man

Member

Registered: 2006-07-06

Posts: 251

Re: MNEMONICS.

HOMES - Huron, Ontario, Michigan, Erie and Superior - the 5 Great Lakes

Sally can tell Oscar has a hat on always (reading down)

Sine (sally) = Opposite (oscar) / hypotenuse (has)
Cosine (can) = Adjacent (a) / hypotenuse (hat)
Tangent (tell) = Opposite (on) / adjacent (always)

If you want to make it even more likely that kids will remember, change "hat" to "hard"!

MathsIsFun

Administrator

Registered: 2005-01-21

Posts: 7,713

Re: MNEMONICS.

I suppose the one for the planets:
My Very Eager Mother Just Served Us Nine Pizzas

Is defunct now, huh? No Pizza for anyone anymore.

LOL!

Maybe make it
My Very Eager Mother Just Served Us Noodles

---

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

maks7251

Member

Registered: 2008-01-04

Posts: 1

Re: MNEMONICS.

Well i know another metd for rememberin sin, cos ,tan

sin=oh
cos=ah
tan=oa

spell as oh,ah, oach(somewhat like ouch)

sin=oh=opposite/hypotenuse
cos=ah= opposite/adjacent
tan=oa=opposite/adjacent

---

Mess with the BEST ,,,,,,, die like the Rest!!!!!

luca-deltodesco

Member

Registered: 2006-05-05

Posts: 1,470

Re: MNEMONICS.

SOH (to be read like a contionus word) - sock it to her
CAH
TOA
easier to remember for most people ive seen, or the other way round

TCS  - the cat sat
OAO - on an orange
AHH - and hurt him/herself

Last edited by luca-deltodesco (2008-01-04 22:24:34)

---

The Beginning Of All Things To End.
The End Of All Things To Come.

Kargoneth

Member

Registered: 2007-08-11

Posts: 33

Re: MNEMONICS.

SOH
CAH
TOA

Soak a toe(a)

dehaitest

Member

Registered: 2008-02-07

Posts: 5

Re: MNEMONICS.

PHONECALL

= F O N Cl

Fluoride, Oxygen, Nitrogen, Chloride.

The sad thing is, I dont remember what it's for.. just something in chemistry.

Daniel123

Member

Registered: 2007-05-23

Posts: 663

Re: MNEMONICS.

It's a list of elements in order of electronegativity.

careless25

Real Member

Registered: 2008-07-24

Posts: 560

Re: MNEMONICS.

How about NEWS with a backwards S to North, East, West, South.
I made it up myself.:D
The backward S is for remembering the direction.

There were other ones in school like Never Enter Stinky Washrooms. I didnt like them so i created mine.

Last edited by careless25 (2008-07-25 14:29:03)

JaneFairfax

Member

Registered: 2007-02-23

Posts: 6,868

Re: MNEMONICS.

I made this one up myself for the planets:

Mount Vesuvius Erupting Menacingly Just Swallowed Up Nearby Pompeii.

Note that it was made up years ago, when Pluto was still considered a planet. It’s such a nice mnemonic that I don’t want to spoil it by revising it just to accommodate the reclassification of Pluto as a dwarf planet.

careless25

Real Member

Registered: 2008-07-24

Posts: 560

Re: MNEMONICS.

How about BEDMAS.
I think we all kno wat it means.

Last edited by careless25 (2008-07-26 05:05:20)

infinitebrain

Member

Registered: 2008-07-01

Posts: 153

Re: MNEMONICS.

and also PEDMAS don't forget

---

The best thing about life is you don't know what to expect

stuart56

Member

Registered: 2008-08-05

Posts: 1

Re: MNEMONICS.

Mums Very Expensive Mohair Jumper Shrank Using New Persil - the planets (should be Daz now I suppose -  Downgraded)

Sides Of Houses      Can Always Hold      Tons Of Adverts   -  Trig

or the one my students prefer

S*x  On Horseback      Can Actually Happen       To Our Amazement

Last edited by stuart56 (2008-08-05 20:32:52)

MooseofDoom

Member

Registered: 2008-08-10

Posts: 13

Re: MNEMONICS.

PEMDAS. Please excuse my dear aunt sally.

---

π≈ 3.141 592 653 589 793 238 462 643 383 279 502 884 197 169 399 375 105 820 974 944 592 307 816 406 286 208 998 628 034 825 342 117 067 982 148 086 513 282 306 647 093 844 609 550 582 231 725 359 408 128 481 117 450 284 102 701 938 521 105 559 644 622 948 954 930...

pinto

Guest

Re: MNEMONICS.

Roy G. Biv for the colours of the rainbow
and
Scott Owes Herlihy Cash And Hard To Obtain Antiques (we made it up in school)
for Trig.
for the Japanese
And Ken Said To Nigel Hey Man You're Really Wild
Bidmas/Bodmas for order of operations

JohnnyReinB

Member

Registered: 2007-10-08

Posts: 453

Re: MNEMONICS.

PEMDAS, here, for order of operations.

I remember reading something after Pluto was reclassified. The mnemonic should now be:

My Very Eager Mother Just Served Us Nothing! <- the planets

Chris Plays Everything! <- the minor planets (so far)

---

"There is not a difference between an in-law and an outlaw, except maybe that an outlaw is wanted"

Nisi Quam Primum, Nequequam

Chewy

Member

Registered: 2008-08-07

Posts: 67

Re: MNEMONICS.

Lines of the treble (g-clef) staff on sheet music, from bottom to top:

Every good boy deserves fudge  (E,G,B,D,F)

Lines of the bass (f-clef)s staff, from bottom to top:

Face (F,A,C,E)

luca-deltodesco

Member

Registered: 2006-05-05

Posts: 1,470

Re: MNEMONICS.

standard guitar tuning (6 string)

(high to low) every bad guy deserves an execution

EADGBE

(made up in 5s)

Last edited by luca-deltodesco (2008-08-31 00:10:11)

---

The Beginning Of All Things To End.
The End Of All Things To Come.

gmsc

Member

Registered: 2008-10-05

Posts: 11

Re: MNEMONICS.

For the planets, I had always learned:

My Very Easy Method Just Speeds Up Naming Planets

To remember the English Monarchs, there's:

Willie, Willie, Harry, Stee,
Harry, Rich, John, Harry Three,
One-To-Three Neds, Richard Two,
Harrys Four-Five-Six... then who?

Edwards Four-Five, Rich the Bad,
Harrys (twain), Ned Six (the lad),
Mary, Bessie, James you ken,
Then Charlie, Charlie, James again...

Will & Mary, Anne of gloria,
Georges ( 4! ), Will Four, Victoria,
Edward Seven next, and then
Came George the Fifth in 1910...

Ned the Eighth soon abdicated,
So George Six was coronated,
Then Number Two Elizabeth...
And that's all, folks (until her death...)!!

Eventually, the last line is expected to be changed to:
Charles Three (and now I'm out of breath...!)

Last edited by gmsc (2008-10-05 07:06:22)

glenn101

Member

Registered: 2008-04-02

Posts: 108

Re: MNEMONICS.

We use
BODMAS here.
Oh and our specialist teacher made a mnemonic for sec, cosec and cot

CHOSHACTOA

cosect(H/O)
sec(H/A)
cot(O/A)

Don't know it its useful to others, but it works for me.

Last edited by glenn101 (2008-12-22 14:29:56)

---

"If your going through hell, keep going."

random_fruit

Member

Registered: 2008-12-25

Posts: 39

Re: MNEMONICS.

One that I was taught at a Electrician's class, consisting mostly of teenagers, for the sin, cos and tan:

gender Over Here Can Always Happen To Old Age

which means:
gender Over Here: Sin = Opp / Hypot
Can Always Happen: Cos = Adjac / Hypot
To Old Age: Tangent = Opp / Adjac

quittyqat

Member

Registered: 2009-04-08

Posts: 1,215

Re: MNEMONICS.

For E, G, B ,D ,F:
Empty garbage before Dad flips
Every good band deserves fans
Every good burger deserves fries

---

I'll be here at least once every decade.

soroban

Member

Registered: 2007-03-09

Posts: 452

Re: MNEMONICS.

.

.