I saw the poster here http://mathequalslove.blogspot.com/2015/08/fractions-containing-zero-no-ok-posters.html

but wanted a little more context & color. So, my version: … yes, I want to make a movie with an explanation but that’ll keep…

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howardat58

January 4, 2016

Hi and thanks for sending me all the app stuff. I am pondering a response.

Nit-picking dept: I think it should say “divide into it” in your poster.

xiousgeonz

January 5, 2016

You mean divide “into” zero instead of ‘by” zero? Student language is very much “divide by…” and the image I give them is sharing nothing with all of our friends, so we’re dividing that ‘zero” into groups of K… and I could add that but I was already getting past the “poster word limit” (I am trying to think “meme-sized”)…

howardat58

January 5, 2016

Hi !

I was referring to the “you can have zero and divide it” bit !!!

I must be more clear with my comments.

When I was in primary school in Berkshire we used “goes into” for division, and being Berkshire we all said “guzzinter”.

xiousgeonz

January 5, 2016

One of my teacher friends would refer to the “long division” container as the “gazinta,” because then students could write left-to-right and say 8 (then write the little cage) “gazinta” (then write the number) 632… I’ll think on that, because *if* the phrase connects to an idea, it’s worth connecting to… but I think for most of my students, the 6 isn’t going into anything.

I thnk I’ll try asking “how many 6 dollar items can you buy for 0 dollars?” b/c that might just be more concrete than not having anything and sharing it. Thanks!

howardat58

January 5, 2016

I just had a silly thought: Share 0 sweets with(between?) 6 kids. 0 for you, 0 for you, 0 for you,…. Then clearly 0 = 0 + 0 + 0 + 0 + 0 + 0, or more simply, 6 time 0 is 0, or symbolically,

6 x 0 = 0

So divide both sides by 6 and get 1 x 0 = 0/6, and since one zero is zero we get 0/6 = 0

Maths really is dumb fun.

xiousgeonz

January 5, 2016

That was pretty much my kind of example — but I’ve also asked “if you had 0 parking spaces, how many groups of four cars could you park there?”

howardat58

January 5, 2016

Nice one !