Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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#2 Re: Maths Is Fun - Suggestions and Comments » Characters for Mathsisfun » 2007-06-05 01:59:21

Agree with last message. Not sure that a cap would portray the right image for the site. Any other images to see? I like the general idea though.

#3 Re: Help Me ! » Proportionality » 2007-06-02 03:13:30

Hey Daniel - my computers crashed at home so wont be on again until Monday afternoon. Just wishing you all the best in your maths exam mon morn. You'll be fine. Lets know what you thought of it anyway. Cheers.

#4 Re: Help Me ! » Proportionality » 2007-06-02 02:54:09

Oop, trying to be clever with computer commands. Will have another go - hope you understand what I meananyway.
Ans:

#5 Re: Help Me ! » Proportionality » 2007-06-02 02:51:33

Thats the right answer I reckon Danial because

is exactly the same as [maths]18 y^-0.5[/math]

In your solution you said x is divided by 2 but the changed it to a 3, be careful.

Good luck on Monday.

#7 Re: Puzzles and Games » someone might've already posted this but... » 2007-05-31 05:12:02

Jane - if even numbers end in 0, 2, 4, 6 or 8  in your opinion why is the first even number not 0? - kids in year 9 were asking.

Personally, I would argue that 0 is not even a number....is it?? (digital representation only when using our place value system)

#8 Re: Maths Is Fun - Suggestions and Comments » Characters for Mathsisfun » 2007-05-31 05:07:03

Names for the characters?
Coloured in figures?

Pet Animals? - parrot called Poly-gon (very obvious, but might appeal to younger users of the site)
Boy Name : RON (Using protractor/ drawing angles, Right Outside numbers)
Girl : LIN (Protractor use, Left Inside Numbers)

Any good?

Right, obviously I've been working too hard so off for a lie down now! adios

#9 Re: Introductions » hiya everyone!! » 2007-05-30 10:38:10

Hi Bubble - Just started using this forum too - its good fun and lots of decent people posting helpful messages. If you have any probs with GCSE work just let me know (been teaching it for many moooons now!) Have fun on the website. Bye for now.

#10 This is Cool » The Human Calculator » 2007-05-29 19:29:28

Big Mac
Replies: 7

Mental Arithmetic: Have you seen this guy in action?

www.youtube.com/?v=4O0v32wpqhQ

Anyone know how he does it?

By the way, I have actually met this fella and he is for real.

#11 Re: Puzzles and Games » lightning's spelling Bee » 2007-05-28 20:37:34

Ok, cheers.

Try this one - no word of a lie - when I first stated teached many moons ago. Unbelievable!
Thank goodness I teach maths.

yrntn 

#12 Re: Puzzles and Games » lightning's spelling Bee » 2007-05-28 10:44:21

OOps, sorry mathsy, but I just had a brainwave - apologies. What is ghoti game anyway

#13 Re: Puzzles and Games » lightning's spelling Bee » 2007-05-28 10:16:30

The worst spelt word I have ever seen is: Chewsdy ......as in days of the week. Anyone able to beat that?

#15 Re: Help Me ! » Exam tips » 2007-05-28 10:03:02

Anytime with help Daniel - keep in touch.

Having another go at hide now:

If this doesn't work, open to sggestions....pressing submit now.

#16 Re: Help Me ! » Exam tips » 2007-05-28 09:42:18

Why didn't the hide box work? - what am I doing wrong?
{hide=help!} Is this it? {/hide}

#17 Re: Help Me ! » Exam tips » 2007-05-28 09:39:57

Cheers mathsy. I'm not that good on comuters so appreciate the assistance - will try it out.

Daniel, good answer that suggest a very high level of understanding. Rationalising the denominator is AS level in year 12.

Those 5 questions, although basic and not top end of GCSE, students always find tricky.... as well as perennial pitfall  -3 (x - 4 ) = -3x - 12.   Careful.

Last two answers: 4. Infinity (always when dividing by 0) and 5. was supposed to be a joke.
See answer under box ....just trying out mathsy's advice, hold on.
[hide = click here] When you start getting gray hair! hehehe [/hide]

#18 Re: Help Me ! » Exam tips » 2007-05-26 10:20:10

Your Statistical methods sound well in line with A* although how they are used in the analysis and evaluation in relation to your initial hypothesis would prove of interest. Dont worry, bet you got at least  two 7's and a 6 for it which should guarantee the highest grade anyway.

As regards your choice of topic areas - dont worry - they will all come up! lol
Similarity and changing the subject can be tricky too.

Just as matter of interest for me Daniel, would you mind spending a couple of mins on these 5 questions- see if you get all 5 right (will send answers next time as dont know how to hide info in message areas yet - or get my logo upand running!)
All these cropped up in my lessons recently (year 10) and all not that straight forward ie Most couldnt do them!!

1. 24 divided by 1/3 ?
2. 0.3 x 0.3 ?
3. Change 15 sqm into sqcm
4. What is 1 divided by 0 ?
5. What is the sine of 45 ?(no calculator)

#19 Re: Help Me ! » Exam tips » 2007-05-26 08:51:06

Daniel - Just had brief look at BBC bitesize. You can download an exam suitable for your tier of entry if you want extra practice. That website looks pretty thorough to me with interactive online assignments so might be worth having a look.

Don't worry too much about the end questions, they are supposed to be challenging. Estimated for A* - sounds impressive to me - you wanna come and have a look at the standard of work my set 4 are up to....Let's just say its not easy! lol.

Reading your mind here: I bet you that you find transforming graphs the hardest topic to do. Yes?
                                    probably followed by probability and 3D trigonometry.

What coursework you do....Mayfield High and Borders??

Anyway, try to keep to your revision schedule  and get back anytime -all the best.

#20 Re: Help Me ! » Exam tips » 2007-05-26 02:14:52

Hi Daniel - I teach maths at a secondary school so if you have specific problems then just let me know.

A couple of questions for you :
1. What board are you doing, edexcel, OCR or AQA? normally

2. Are you doing the Higher Tier level of entry?

Don't frget that you have already done 20% of the exam in coursework format.

My advice at this stage is to stay calm and just organise your revision properly.
I guess that you enjoy maths and are pretty competent at it already just by the sheer fact that you are using this maths forum in the first place..... so don't worry too much.

Good Rule for revision -1 hour revision then a break...1 hour revision....etc (no distractions)
Make sure that you have a go at plenty of Past Paper questions which will really improve confidence and aid your progress.

By the way,at our school we do the edexcel exams but it doesnt really matter.

Anyway, good luck... but just remember that if you want help then just post further messages on this thread.

Hope this helps mate.

#21 Help Me ! » Fascinating Maths Books for Teenagers ? » 2007-05-25 20:09:22

Big Mac
Replies: 0

Hi - I wonder if anyone can help me.

I am searching for some maths books aimed at secondary school children, that would either:

1. Spark some initial interest in the subject, even though they find it hard(and boring) to master.

or

2. Prove of interest and aid further stimulation and advancement ( in a fun format) to teenagers who already have lots of natural ability. - ie. Future ALevel students.


Although I find the murderous maths "comic style" books really informative, I am after books which have a more "mainstream" chapter by chapter approach and format to them.

Any books that have loads of fascinating tips, facts and methods would really prove of great interest.

Looking forward to the positive help and feedback - thanks.

#22 Re: Exercises » TRy to get a perfect square » 2007-05-22 17:20:34

Hi Maria

Why not try this alternative way using easy square numbers....

26 x 26

This is 4 away from 30 so...... add and subtract 4 to 26 to get   22 x 30 = 660
                                     Then add on your 4 squared                         = 660 + 16 = 676

eg 13 x 13 = (10 x 16) + (3 x 3) = 169

Neat eh? - hope this of use. smile

#23 Re: Puzzles and Games » Optimist or Pessimist? » 2007-05-22 17:09:14

Lol - cheers folks - some great replies.
mikau and Identity - Being independent, it probability is! - exhaustive though eh?

#24 Puzzles and Games » Optimist or Pessimist? » 2007-05-21 16:11:27

Big Mac
Replies: 9

Hi Everyone, can anyone explain this little maths curiosity?

Is the glass half empty or half full?

Let E = Empty and F = Full

Therefore 0.5E = 0.5F

Multiplying by 2 to get E = F

Surely this is not possible????  lol - open for discussion.

By the way, if anyone has anymore "goodies" then I would be more than interested. Cheers.

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