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Mrs Tibble’s / Mr Atkins’ Year 9711 comments to Mrs Tibble’s / Mr Atkins’ Year 9 |
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Hi mrs tibble, so for the maths homework would the answer be that every time you square an odd number you get an odd result and every time you square an even number you would get an even result? And how can you show this algebraically?
Hi Mrs T,
For the homework, what are you meant to use in the brackets? I’ve tried n squared and (n+3) squared, because 3 is odd, but the result I’m getting must only work for 3 and not for all odd numbers, but I can’t think of a way to represent all odd numbers. I’m really stuck. Even the explanation that I’ve jut written has confused me. Am I:
a.) being stupid?
b.) doing something wrong?
c.) not even doing what you’ve asked us?
Please help!!
Grace
Hi guys,
You are thinking along the right lines but you need to think more carefully about how you set up the algebra.
How do you define an even number? So how can you guarantee that your algebraic number will be even?
Following on from that, how can you guarantee your algebraic number will be odd?
(Look at the first bit of algebra you did in the lesson – how did we know that answer had to be odd?)
Olivia – what you have said so far is correct, and you can continue along those lines in words. What happens when you subtract different combinations?
Well done everyone: you’re all thinking very hard
Mrs Tibble
i do not understand anything!
I don’t know what we need to prove or how to prove it.
Help me please!
Jadzia,
It would help if you calmed down slightly and didn’t make such sweeping dramatic statements which aren’t even true!!!!!!!!!!
Go back a page to Lili’s first post and read through everything that has followed on from there.
You haven’t actually been asked toprove anything – just look at your results from the lesson and see if there are any patterns for getting odd answers and even answers. That’s it! It was your classmates who started asking about proof, not me!! Take it up with them. Olivia had the right idea just thinking about the nature of odd and even numbers in words.
See you tomorrow!
Mrs Tibble, what do you mean by subtracting differant combinations? And are we supposed to be using the square numbers themselves or the results we got in class from the Whats Possible thingy?
Hi Olivia,
Use both.
by different combinations I mean two odds, or two evens, or one of each (does order matter?)
Hope that helps.
Thank you this is really helping! Are we literally just looking for differant patterns in the numbers?
YES!
Ok good because thats what i’ve done
thank you!
Well done Olivia! Would you like to teach tomorrow’s lesson?