Percentage Change

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Rachel Staddon

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Rachel Staddon 8 years, 7 months ago

Published this.

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Rachel Staddon 8 years, 7 months ago

Created this.

Name	Status	Author	Last Modified
Percentage Change	draft	Rachel Staddon	18/09/2016 19:45
Lois's copy of Percentage Change	draft	Lois Rollings	07/12/2016 15:57

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Question statement

Give the percentage change (to 2 decimal places) for the following scenarios:

Give any introductory information the student needs.

			Name	Type	Generated Value

original	integer	3400
new	integer	500
partyorig	integer	12
partynew	integer	29
orig	integer	99
newn	integer	85
partychange	decimal	dec("141.67")
wrongparty1	decimal	dec("-141.67")
wrongparty2	decimal	dec("-58.62")
wrongparty3	decimal	dec("1.42")
change	decimal	dec("-85.29")
wrongchange1	decimal	dec("85.29")
wrongchange2	decimal	dec("580.00")
wrongchange3	decimal	dec("-0.85")
chang	decimal	dec("-14.14")
wrongchang1	decimal	dec("14.14")
wrongchang2	decimal	dec("16.47")
wrongchang3	decimal	dec("-0.14")

Automatically regenerate variables?

Name

Data type

Value

xxxxxxxxxx
 
random(100,200,300,400,500,600,700,800,900,1000,1200,1500,1600,1800,2000,2200,2400,2500,2600,2700,2800,3000,3100,3200,3300,3400,3500,3600,3700,3800,3900,4000,4200,4300,4500,4600,4800,5000)

JME function reference

Description

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

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Generated value: `integer`

3400

→ Used by:

change
wrongchange1
wrongchange2
wrongchange3

This variable doesn't seem to be used anywhere.

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

At the start of a party, there are $\var{partyorig}$ people present. At the end of the party, there are $\var{partynew}$ . What is the percentage change?

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Advanced settings

Selection type

Number of display columns

(not displayed in columns)

Custom marking matrix?

$\var{partychange}$ %

Marks: Distractor Message:
$\var{wrongparty1}$ %

Marks: Distractor Message:
$\var{wrongparty2}$ %

Marks: Distractor Message:
$\var{wrongparty3}$ %

Marks: Distractor Message:

Advice

To calculate percentage change, you should use the following formula:

[(New - Original) / Original] x 100 = Percentage change (remember to check your notes)

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Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

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Checkpoint description

Rachel Staddon 8 years, 7 months ago

Rachel Staddon 8 years, 7 months ago

Error in variable testing condition

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Generated value: `integer`

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Percentage Change

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

History

Comment

Checkpoint description

Rachel Staddon 8 years, 7 months ago

Rachel Staddon 8 years, 7 months ago

Error in variable testing condition

Error

Warning

Generated value: integer

Parts

Choose one from a list

Advanced settings

Generated value: `integer`