For the girls who were playing netball:
We covered area of a parallelogram and area of a triangle. You will need to copy up the notes you missed.
The questions we looked at were Ex 7B: 1-8 and Ex 7C: 1-8.
We only have 1 maths lesson next week so we had to do this new work today. If you have any problems understanding it, come and see me.
I missed a lesson ages ago and the homework was p293 Q4-10 and I really don’t understand what to do. I’ve copied out the notes and that doesn’t help, so please can you explain!
Thanks
Rachel
Hi Rachel,
8.19 on a Saturday morning!!! There’s dedication lol
OK I’ll try to explain online! When you have a continuous scale, like you would for lengths or weights for example, then values have to be rounded. Eg you might measure a length to the nearest cm. Picture on a ruler all the lengths that could be rounded to 12cm say. It would be everything from 11.5 to 12.5 cm, but not including 12.5 itself as that would be rounded up to 13 rather than down to 12..
You show this on a number line by drawing a circle at 11.5, a circle at 12.5, and a line joining them. The circle at 11.5 is coloured in to show that 11.5 is included. The circle at 12.5 is not filled in to show that 12.5 is not included.
In general, whatever the rounding is to the nearest of, you go half of that above and below the rounded value. eg if a price has been rounded to the nearest £, the range is half of that each side, so + or – 50p.
The only variation on this is when the rounding is done in an odd way, not following the usual rounding rules. For example, in Q2 on page 293, it is 5 hours rounded DOWN to the nearest hour. This means that everything above 5 is included until you actually reach 6 because they are only rounding down, never up. The range would therefore be from 5 to 6, not including 6 itself.
The strange questions in the homework which don’t obey the usual rounding rules are the ones where they say ‘complete’.
Hope that helps. Have fun!
Mrs T
…Thanks!
I’ll give it a go…
I don’t understand Q 6! Can you please explain to me how to do it! Seriously confuddled.
Rachel
If you are rounding to the next complete cm it means that once a cm is started it is counted as being a full cm eg anything past 9 (wherever it is) would be rounded up to 10.
Does that help? (This is not usual rounding which is why it’s so confusing)
Enjoy your day off. Are you on stage?
I missed the lesson on Tuesday the 12th so i am copying on a piece of paper as i think you have my book….
Is that ok?
thankx
F
Course it is! Write on one side of the paper then you can stick it in your book.
Congratulations on a FANTASTIC result in Lewisham
the practice mock paper is really useful thankx
i did the paper
some was a bit hard
You’re welcome
Have fun!