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Author Topic: Answer Jake's homework for him please.  (Read 17960 times)
The Camel
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« on: October 10, 2015, 11:51:16 PM »

These are two questions Jake had for homework this week.

Please just give what you think the answers are, but don't give your workings.


1. I bought 3 oranges for 29p and two drinks for £1.04. How much did I spend altogether?

2. I buy 6 CDs costing £6.99. How much change do I get from £50?

Thanks!
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kukushkin88
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« Reply #1 on: October 11, 2015, 12:10:57 AM »


£2.95

£8.06
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byronkincaid
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« Reply #2 on: October 11, 2015, 12:24:26 AM »

£1.33

£43.01
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mulhuzz
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« Reply #3 on: October 11, 2015, 12:25:51 AM »

£1.33

£43.01

Agree, not only are the questions imprecise, people still buy CDs?
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celtic
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« Reply #4 on: October 11, 2015, 12:26:08 AM »

£1.33

£43.01
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The Camel
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« Reply #5 on: October 11, 2015, 12:34:56 AM »

Thanks for the answers.

Jake gave the same responses as Kush and when confronted with the questions, so did I.

Obviously the last 3 posts are technically correct and we are wrong.

But his teacher just put two big red crosses next to his answers without any explanation as to why they were wrong.

Terribly worded questions IMO.

Or would she ask trick questions to 9 and 10 year olds?
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Karabiner
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« Reply #6 on: October 11, 2015, 12:51:53 AM »

£1.33

£8.06
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byronkincaid
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« Reply #7 on: October 11, 2015, 12:53:38 AM »

Patrick Rothfuss gets called a genius for writing like that. If you fly through it quickly it reads like a cross between Harry Potter and Jack Reacher. Reread it carefully and a little more literally and you realise that there is some really cool stuff hidden in plain sight. Perhaps the Teacher is a fan.
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Doobs
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« Reply #8 on: October 11, 2015, 12:55:43 AM »

Thanks for the answers.

Jake gave the same responses as Kush and when confronted with the questions, so did I.

Obviously the last 3 posts are technically correct and we are wrong.

But his teacher just put two big red crosses next to his answers without any explanation as to why they were wrong.

Terribly worded questions IMO.

Or would she ask trick questions to 9 and 10 year olds?

Teacher is from the 1970s clearly.  Ask him where he can buy 3 oranges for 29p these days.  

Am in the question is terrible camp.  Just putting red x's without explanation is terrible too.  My daughters teachers don't even use red ink, as it is seen as negative.  
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celtic
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« Reply #9 on: October 11, 2015, 01:21:23 AM »

Why are the questions terrible?

They seem quite straight forward.

If the question said they bought X at £X each then the kush answer would be right. But they didn't.
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Karabiner
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« Reply #10 on: October 11, 2015, 01:35:29 AM »

I assume that you have now been sacked from helping Jake with his homework.
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« Reply #11 on: October 11, 2015, 02:13:51 AM »

terribly worded or not digested properly ?
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Jon MW
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« Reply #12 on: October 11, 2015, 08:46:54 AM »

Why are the questions terrible?

They seem quite straight forward.

If the question said they bought X at £X each then the kush answer would be right. But they didn't.

Technically this is correct, but it would be clearer if the total cost of the oranges were divisible by 3 and the total cost of the CD's were divisible by 6 and although it's not needed we were told on a PGCE course that you should always make the wording of questions overly precise - specifically to avoid pupils misinterpreting the language rather than being unable to do the maths.

The fact that the teacher just marked it wrong suggests that they didn't bother looking at the answers and was just tick/crossing all the work. It should be 1/2 mark for each with an explanation of why it was wrong.
« Last Edit: October 11, 2015, 08:49:27 AM by Jon MW » Logged

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« Reply #13 on: October 11, 2015, 09:10:26 AM »

Think this is one of those wonderful moments where you get to sit down with your lad and tell him he is smarter than his teacher.
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TightEnd
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« Reply #14 on: October 11, 2015, 09:53:50 AM »

very poor questions indeed. badly worded

would hve a hard time marking either of

£1.33

£43.01

or

£2.95

£8.06

incorrect, such is the phraseology

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