Comments for MathedUp!

Comment on Minus or Negative? by Tom

Tom — Thu, 15 Oct 2020 12:30:33 +0000

Hi MathedUp.

WIth 5 x -3, if thought of as “5 lots of negative 3”, this is tangible as it is.

With -3 x 5, if thought of as “negative 3 lots of 5”, this is hard to vizualize, as in what does “negative 3 lots of” mean in concrete terms?

The only explanation I can find online that appears reasonable as a concrete model, is to treat the negative sign of the first number as subtraction, ie:

(-3) x 5 = subtract 3 lots of 5.

If there was a way to model (-3) x 5 in a concrete way, and leave the negative sign as a property of the first number, I would love to hear it. I know we can use the commutative law, and change the order of the numbers, to 5 x (-3). This is also a proper explanation, but is not a model of (-3) x 5.

Thanks

Comment on Transforming graphs by MathedUp

MathedUp — Wed, 30 Oct 2019 20:56:19 +0000

In reply to Fish. Pleased to hear it! Thank you for taking the tome to comment :)

Comment on Transforming graphs by Fish

Fish — Tue, 29 Oct 2019 17:28:54 +0000

I’m late to the party but I really wanted to say thanks for these resources. I’ve got a student who is struggling with graph transformations and this way of explaining strikes me as a much more intuitive way to ‘get’ why the transformations work the way they do.

Comment on GCSE Maths Takeaway by MathedUp

MathedUp — Tue, 16 Jul 2019 19:47:52 +0000

In reply to Amy. Yes, you need to make sure you know both. This is everything you need :)

Comment on GCSE Maths Takeaway by Amy

Amy — Tue, 16 Jul 2019 19:45:55 +0000

Is this Absolutely everything that i need for my GCSE’s. if i am doing higher do i need to learn the foundation stuff as well as the foundation/higher stuff?

Comment on GCSE Maths Takeaway by Making Mathematics Stick | Mathematics, Learning and Technology

Making Mathematics Stick | Mathematics, Learning and Technology — Tue, 23 Apr 2019 19:10:52 +0000

[…] mark schemes. AQA questions have been used here. Also available on MathedUp are A Level Maths and GCSE […]

Comment on Essential skills by MathedUp

MathedUp — Sat, 13 Apr 2019 20:19:55 +0000

In reply to Jessica (@algebrainiac1). Hi Jessica. Link was broken but have fixed it now. I hope it proves useful..

Comment on Essential skills by Jessica (@algebrainiac1)

Jessica (@algebrainiac1) — Mon, 08 Apr 2019 16:46:28 +0000

I followed a thread of old links on a blog post that came up when I was searching and got to this post…When I click the link for the Essential skills C/D pack, it says it isn’t available. Do you have this somewhere that I can check it out? Thanks!

Comment on About by MathedUp

MathedUp — Sun, 31 Mar 2019 20:15:56 +0000

In reply to Viet.

Thank you for your message. You are more than welcome 🙂
Good luck to you and all of your students!

Comment on About by Viet

Viet — Mon, 25 Mar 2019 23:31:50 +0000

Fantastic work you are doing here. Just cannot say thank enough to how much work you have put into this.