Compound units : shopping for bananas

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Christian Lawson-Perfect	said	Ready to use	7 years, 8 months ago
Chris Graham	said	Needs to be tested	7 years, 8 months ago
Elliott Fletcher	said	Needs to be tested	7 years, 8 months ago

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Christian Lawson-Perfect 7 years, 8 months ago

Gave some feedback: Ready to use

○

Christian Lawson-Perfect 7 years, 8 months ago

Saved a checkpoint:

Fixed a static pronoun. Otherwise, good.

Restore this checkpoint

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Chris Graham commented 7 years, 8 months ago

This was an extraordinarily easy question, and still is, though being a bit of a supermarket bargain guru, it is the sort of mental arithmetic I find myself doing all the time, so have made some modifications and given it a stay of execution.

I've changed this considerably, so am not marking it ready to use.

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Chris Graham 7 years, 8 months ago

Gave some feedback: Needs to be tested

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Elliott Fletcher 7 years, 8 months ago

Published this.

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Elliott Fletcher 7 years, 8 months ago

Gave some feedback: Needs to be tested

○

Elliott Fletcher 7 years, 8 months ago

Created this.

Name	Status	Author	Last Modified
Compound units : shopping for bananas	Ready to use	Elliott Fletcher	20/11/2019 14:35
David's copy of Compound units : shopping for bananas	draft	David Rickard	07/11/2018 21:05

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Question statement

{person['name']} is shopping for bananas and has two local supermarkets:

Hintons Supermarket charges {a}p per banana.

Fine Fare Supermarket charges {b_pack} for a pack of 5 bananas.

Give any introductory information the student needs.

			Name	Type	Generated Value

person	dict	Dictionary with 3 entries
a	integer	17
b	integer	105
b_pack	string	£1.05
b_single	rational	21
mark_matrix	list	[ 1, 0 ]

Automatically regenerate variables?

Name

Data type

Value

xxxxxxxxxx
 
random_person()

JME function reference

Description

Describe what this variable represents, and list any assumptions made about its value.

Can an exam override the value of this variable?

Generated value: `dict`

[ "gender": safe("female"), "name": safe("Rebecca"), "pronouns": [ "they": safe("she"), "their": safe("her"), "theirs": safe("hers"), "them": safe("her"), "themself": safe("herself") ] ]

→ Used by:

Statement
Advice
"Part b)" - prompt
"Part c)" - prompt

Parts

Part a) Gap-fill
1. Gap Number entry
  Add
Part b) Choose one from a list
Part c) Choose one from a list

Gap-fill

Ask the student a question, and give any hints about how they should answer this part.

What is the price per banana (in pence) at Fine Fare Supermarket?

Unnamed gapp/banana

Advice

a)

The pack price at Fine Fare supermarket is {b_pack}, which converted to pence is {b}p.

The price per banana at Fine Fare supermarket is

$\var{b} \div 5 = \var{b_single}\text{p.}$

b)

As the price at Hintons supermarket is cheaper, {person['pronouns']['they']} should shop there.

c)

The new price per banana at Fine Fare Supermarket is

$\begin{align} \var{b} \div 6 &= \var{if(isint(b/6),b/6,dpformat(b/6,1))}\text{p.} \\ \end{align}$

Since the price at Hintons Supermarket is still cheaper, {person['name']} should not change {person['pronouns']['their']} decision.

Since the price at Fine Fare Supermarket is now cheaper, {person['name']} should change {person['pronouns']['their']} decision.

Give a worked solution to the whole question.

Use this tab to check that this question works as expected.

There was an error which means the tests can't run:

Part	Test	Passed?
Gap-fill
Gap-fill		Hasn't run yet
Number entry
Number entry		Hasn't run yet
Choose one from a list
Choose one from a list		Hasn't run yet
Choose one from a list
Choose one from a list		Hasn't run yet

This question is used in the following exams:

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Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

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Checkpoint description

Christian Lawson-Perfect 7 years, 8 months ago

Christian Lawson-Perfect 7 years, 8 months ago

Chris Graham commented 7 years, 8 months ago

Chris Graham 7 years, 8 months ago

Elliott Fletcher 7 years, 8 months ago

Elliott Fletcher 7 years, 8 months ago

Elliott Fletcher 7 years, 8 months ago

Error in variable testing condition

Error

Warning

Generated value: `dict`

Parts

Gap-fill

a)

b)

c)

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Error

Compound units : shopping for bananas

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

Feedback

History

Comment

Checkpoint description

Christian Lawson-Perfect 7 years, 8 months ago

Christian Lawson-Perfect 7 years, 8 months ago

Chris Graham commented 7 years, 8 months ago

Chris Graham 7 years, 8 months ago

Elliott Fletcher 7 years, 8 months ago

Elliott Fletcher 7 years, 8 months ago

Elliott Fletcher 7 years, 8 months ago

Error in variable testing condition

Error

Warning

Generated value: dict

Parts

Gap-fill

a)

b)

c)

Generated value: `dict`