Julie's copy of Input 5

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Julie Crowley

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Christian Lawson-Perfect

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Ready to use

8 years, 9 months ago

History

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Christian Lawson-Perfect 8 years, 9 months ago

Gave some feedback: Ready to use

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Julie Crowley 9 years, 6 months ago

Created this as a copy of Input 5.

Name	Status	Author	Last Modified
Input 5	Ready to use	Christian Lawson-Perfect	01/06/2016 11:03
Numbas Input: Algebraic Fractions	Ready to use	Lois Rollings	27/07/2016 10:57
Input 5	Ready to use	Julie Crowley	26/07/2016 12:52
Julie's copy of Input 5	Ready to use	Julie Crowley	26/07/2016 12:53
Basic Algebraic input for numbas	Ready to use	Julie Crowley	07/10/2016 17:00
Input 5	draft	steve kilgallon	18/08/2016 16:12
Hvordan skrive tall og algebraiske uttrykk inn i Numbas?	draft	Ida Friestad Pedersen	02/11/2016 07:35
ingresar expresiones algebraicas en Numbas	draft	Ricardo Monge	05/10/2017 19:36
Clare's copy of Input 5	draft	Clare Lundon	09/09/2019 08:33

There are 24 other versions that do you not have access to.

Question statement

This question concerns ratios of algebraic expressions.

By this we mean expressions of the form $\displaystyle \frac{p(x)}{q(x)}$ where $p(x)$ and $q(x)$ are algebraic expressions.

If you want to input such an expression into the system you HAVE TO BE CAREFUL AND USE BRACKETS or mistakes will occur.

Once again, the box displaying your input in mathematical notation beside the input boxes in parts a and b is very useful as it shows what the system thinks you have entered.

Give any introductory information the student needs.

			Name	Type	Generated Value

a	integer	10
c	integer	3
b	integer	15
d	integer	8

Automatically regenerate variables?

Name

Data type

Value

xxxxxxxxxx
 
random(2..16#2)

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: `integer`

→ Used by:

This variable doesn't seem to be used anywhere.

Parts

Part a) Gap-fill
1. Gap Mathematical expression
  Add
Part b) Gap-fill
1. Gap Mathematical expression
  Add

Gap-fill

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

Input the expression $\displaystyle \frac{\var{b}+\var{a}y}{\var{d}+\var{c}z}$ . Unnamed gap

Advice

a)

A correct input is ({b} + {a}y) / ({c} + {d}z). Also correct is ({a}y+{b}) / ({c} + {d}z) etc.

b)

A correct input is ({d}z + {b}) / ((x + {a})*(y + {c})).

Note the denominator (the bottom of the ratio) has to have two brackets, i.e. ((x + {a})*(y + {c})) as otherwise the expression ({d}z + {b}) / (x + {a})*(y + {c}) is seen by the system as $\displaystyle \left(\simplify[std]{({d} * z + {b}) / (x + {a})}\right) (y + \var{c})$

Give a worked solution to the whole question.

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Part	Test	Passed?
Gap-fill
Gap-fill		Hasn't run yet
Mathematical expression
Mathematical expression		Hasn't run yet
Gap-fill
Gap-fill		Hasn't run yet
Mathematical expression
Mathematical expression		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

Contributors

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Checkpoint description

Christian Lawson-Perfect 8 years, 9 months ago

Julie Crowley 9 years, 6 months ago

Error in variable testing condition

Error

Warning

Generated value: `integer`

Parts

Gap-fill

a)

b)

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Error

Julie's copy of Input 5

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

Feedback

History

Comment

Checkpoint description

Christian Lawson-Perfect 8 years, 9 months ago

Julie Crowley 9 years, 6 months ago

Error in variable testing condition

Error

Warning

Generated value: integer

Parts

Gap-fill

a)

b)

Generated value: `integer`