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Mrs Tibble’s Year 8548 comments to Mrs Tibble’s Year 8 |
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Hello
I don’t really get the homework because i wasn’t there, what do we have to do?
Hi Catherine,
Mission accomplished!
JT
did we get homework today?
:S
Hi Alice,
Err…. was there homework? You did maths last night remember!
You played fantastically tonight; I love the sound you get out of your cello
Well done!!
The resident bassoonist lol!
Thank you
Oh because i looked at Emily’s diary and there was something about a bingo board?
Yeaaah haha
Oh yes – that was just get your next bingo board ready so that it doesn’t waste time in the lesson. 5 squares by 5 like last time, with the numbers 1-25 randomly written in them.
Hi Esme,
Such enthusiasm in year 8 for homework!! You had it last night remember. It was just get your bingo board ready for the next mental arithmetic game.
JT
But i wasn’t in the lesson :S
Sorry about this haha
For the homework, some of the questions don’t work, for instance on 4b, i tried pressing the S=>D button but it still came up as a decimal? And also on 5, my fraction button doesn’t work when you cube root it?
Confused :S
Hi Alice,
Fill the screen with 8s, then press = , then S-D. Should work.
Work out what’s inside the cube root sign first, then do the cube root of your answer (cube root button, Ans button, = )
JT
I did that, but now i’m ridiculously stuck on q 6 :/
Hi Alice,
It is actually quite hard, so leave it till the lesson if you like.
You need to remember that square-rooting undoes squaring, so if you work out what is on the right hand side of the =, that will tell you what the answer to x-squared is. Square-rooting that will give you what x is.
Don’t spend ages on it as we didn’t look at these in the lesson.
JT
Ok is that alright if we go through it in the lesson ?
Thank you
I worked out the right hand side of the = sign and it came to 20 and a bit and the square root of 17 is 4 and a bit and then i got stuck
Alice, that’s fine. You’re actually only one step from the answer!
The 20 and a bit which you got on the right hand side just needs square-rooting and you’re there
AHHHHHH YESSSSSS
Is the answer 4.50432593, i.e. 4.54?
4.54 is correct – you’ve made a typo in the long version. Well done.
I’m doing the decimal number on the homework, and when i square root it it comes up with a number bigger than the previous one ? Have i made a mistake somewhere or is that how it’s meant to be?
Hi Alice,
Well-spotted, and a good question
Think about what happens when you square one half, for example. 1/2 x 1/2 = 1/4
(half of a half is a quarter). Therefore the square root of 1/4 is 1/2 which is bigger!
Does that help you understand?
JT
Oh yeaah i see
I just wanted to check that i wasn’t doing it wrong!
You know on the sheet, the one where we have to find the sum that totals to 1500, it says find a sum that totals a number close to 1500? So does it mean actually 1500 or like 5 or 6 out?
I’m the only one who goes on this blog
Hi Alice,
Well the others don’t realise what they are missing then, do they?!!
Closest to 1500 is what it asks for. Are you having fun?
JT
I really don’t get pg26 q2!! Pleasee help
and i really don’t get pg 48 q 1 :/
India, you just have to fill in the empty boxes and work out what the question marks are. I did say in the lesson to ignore the writing and just work out the numbers.
Just out of interest, why have you left this till Sunday night when it was set last Thursday?
JT
I understand the empty boxes but i don’t understand what are the answers for a b c and d? where do you find them? Sorry i left it so late i was really busy
i know that’s not an excuse but i really was! 
not d
just a b and c 
India,
The answers to the questions are just the numbers from the boxes.
JT
do not worry a lovely rachel helped me
i shall give her some chocolate tomorrow 
I understand now
That’s good
Remember to look at your homework as soon as you get it (even if you don’t do it then) so that you have time to ask for help if necessary.
JT
on p26 Q6d, what fraction machine creates the X over the 2?
Hi Catherine,
Sorry – only just seen this and I don’t have my book here. Can you be more specific? If not, I’ll look at it in the lesson.
JT
im ok now i just realised it ment divided by 2
Can i please have a past paper to revise for the maths test?
Hi Imani,
You don’t have a maths test! Do you mean the exams after half term? If so, you will be given some practice questions before you break up. In the meantime, if you want things to work on, look in the archives on here at the practice stuff for year 8. (Go to May 2009 in Archives and it’s the 5th one down: Revision Years 7-10)
JT
I really don’t understand p37 q3a. Pleasee help
Hi India,
3a) if the red is x long and the total is 17, how big is the gap? Try giving x a number and work out the size of the gap, then work out what sum you are doing to find the answer. That’s the size of the gap.
eg if x was 3, the gap would be 14; if x was 6 the gap would be 11
so the gap must be 17-x
JT
THANK YOU
You’re welcome
Hey, i know i’m not in your set but on the revision list what does : Rounding to sig. fig. mean?
Hi Megan,
‘sig fig’ is short for significant figures, and it is a different way of rounding numbers which have too much info in them (like calculator answers that fill the screen, for example).
eg If the size of a football crowd is 43,195, we don’t really need to know the number that accurately so we might round it to 2 sig fig. Start counting at the beginning of the number – the 4 and the 3 are the 1st two significant numbers – so we keep those only. However, to keep them in the right columns we need to put in zeros.
Thus we get 43,000 (the 3 doesn’t get rounded up as the number after it is only a 1)
Bit hard to explain clearly on here, so ask your teacher next lesson.
Happy revising,
JT
thaanks (:
Hello
I’m a bit stuck on q5b on p38 – by simplifying does it mean that it wants you to multiply them together or what? I’m very confused :/
Thank you
Hello,
I’m stuck on q5b p38 – by simplifying does it mean put like terms together or multiply them or what? CONFUSED.COM.
thank you
Oops i sent that twice sorry :/
Actually it’s okay i’ve found something on the CD
Hi Alice,
Well done for looking on the CD
Are you OK now?
JT
Hey Mrs Tibble
Could you put some past questions from exam papers on here please?
Thaaaank you
Hi Alice,
Go to the top of the page and find the archives box on the right hand side. Select May 2009 and about 5 posts down you’ll see revision years 7-10 from last year. Work your way through those!
Have fun
JT
Hi Alice,
I can’t get that link to open so if you have the same problem, why don’t you look at some key stage 3 SATS papers for maths practice. You can find some here
http://www.emaths.co.uk/KS3SAT.htm
JT