Loading...

There was an error loading the page.


Try to answer the following questions here:

  • What is this question used for?
  • What does this question assess?
  • What does the student have to do?
  • How is the question randomised?
  • Are there any implementation details that editors should be aware of?

Metadata

Taxonomy:

Feedback

From users who are members of Transition to university :

History

Comment

Checkpoint description

Describe what's changed since the last checkpoint.

Elliott Fletcher 7 years, 5 months ago

Published this.
Picture of Christian Lawson-Perfect

Christian Lawson-Perfect 7 years, 5 months ago

Gave some feedback: Ready to use

Picture of Christian Lawson-Perfect

Christian Lawson-Perfect 7 years, 5 months ago

Saved a checkpoint:

I changed the wording in the advice a bit.

Otherwise, looks good! 

Restore this checkpoint

Picture of Bradley Bush

Bradley Bush 7 years, 5 months ago

Gave some feedback: Needs to be tested

Picture of Bradley Bush

Bradley Bush commented 7 years, 5 months ago

Thank you for the feedback, I've done pretty much everything you've asked but I am unable to fix the scroller as it is an internet explorer issue. I have also left the last line of e)  because i think it is still a useful piece of extra information and eads nicely onto the nexgt question.

Hannah Aldous commented 7 years, 5 months ago

just a few things to comment on:
maybe you could consider changing your title to include a reference to composite functions?
I don't know whether you'd consider a longer statement, maybe explaining what an inverse is and how you find one from an equation/what it might be used for
question d I would maybe separate f(x)...\\and\\g(x)... and then align them
in f you have a comma after c) you either need to remove it or place a comma after your equation
in f typo 'exsist'
with your answer s for f I'm unsure as to whether you need all those full stops as they are not full sentences.
in you advice especially part a it might be nice to have a little explanation as to what you are doing eg what is y
part a of advice is not currently a sentence, maybe you want to expand the first line of both sightly
I'm not sure you need to repeat your questions down in the advice but that is up to you
maybe in advice of d state what g(x) is before you subsitute it
in the advice of e there is a scroller, not sure what it is for and why it is there
not sure you need the last line of e is necessary as it isn't the final solution

Hannah Aldous 7 years, 5 months ago

Gave some feedback: Has some problems

Picture of Bradley Bush

Bradley Bush 7 years, 5 months ago

Gave some feedback: Needs to be tested

Picture of Bradley Bush

Bradley Bush commented 7 years, 5 months ago

Thank you for the advice, I've acted on those two points, let me know if you think I should make any further alterations.

Picture of Christian Lawson-Perfect

Christian Lawson-Perfect 7 years, 5 months ago

Gave some feedback: Has some problems

Picture of Christian Lawson-Perfect

Christian Lawson-Perfect commented 7 years, 5 months ago

Use \left( and \right) around fractions to make sure the brackets stretch to the correct height.

In the advice for the final part, I would use an identity symbol ($\equiv$), and maybe preface the identity with "it is always true that"

Picture of Bradley Bush

Bradley Bush commented 7 years, 6 months ago

I've done that simplification

Vicky Hall commented 7 years, 6 months ago

If your expression is $\displaystyle\frac{\frac{(x-a)}{b}+c}{bd}$, rearrange it to $\displaystyle\frac{x-a+bc}{bd}$. Type this into the marking box as      

(x+{-a+b*c})/{b*d} and it should simplify nicely.

Picture of Bradley Bush

Bradley Bush 7 years, 6 months ago

Gave some feedback: Needs to be tested

Vicky Hall 7 years, 6 months ago

Gave some feedback: Has some problems

Vicky Hall commented 7 years, 6 months ago

The expected answers are not simplifed here. For example, I entered $\displaystyle \frac{x+6}{10}$ (which was marked as correct) but the expected answer displayed as $\displaystyle \frac{\frac{x-2}{2}+4}{5}$. This is the same in the advice, except here the answer displays as $\displaystyle ((x-2)/2+4)/5$, which is a nightmare to read! Have the advice display the solution in its simplest form and use \frac.

Picture of Bradley Bush

Bradley Bush 7 years, 6 months ago

Gave some feedback: Needs to be tested

Bradley Bush 7 years, 6 months ago

Created this.
Name Status Author Last Modified
Inverse and composite functions Ready to use Bradley Bush 20/11/2019 14:40
Patrick's copy of Inverse and composite functions draft Patrick Joyce 27/07/2017 15:58
Inverse and composite functions [L3] draft Abbi Mullins 24/07/2018 14:02
Maria's copy of Inverse and composite functions Needs to be tested Maria Aneiros 05/02/2020 06:59
Inverse and composite functions draft Xiaodan Leng 11/07/2019 01:46

There are 20 other versions that do you not have access to.

Give any introductory information the student needs.

Name Type Generated Value

Error in variable testing condition

There's an error in the variable testing condition. Variable values can't be generated until it's fixed.

Error:

for seconds

Running for ...

No variables have been defined in this question.

This variable was automatically created because there's a reference to it somewhere in this question.

Error

Warning

  • When applying the function,
    Suggestions
    • Change the signature of parameter from to .

This variable is an interactive HTML node. Interactive HTML nodes can not be relied upon to work correctly when resuming a session - for example, attached event callbacks will be lost, and mathematical notation will likely also break.

If this causes problems, try to create HTML nodes where you use them in content areas, instead of storing them in variables.

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

Generated value:

:
← Depends on:
→ Used by:

This variable doesn't seem to be used anywhere.

Help with explore mode

(sum of objective limits)

Objectives

Name Limit

Penalties

Name Limit

No parts have been defined in this question.

Select a part to edit.

This gap is not used in the parent part's prompt.

The student will not be able to enter an answer to this gap.

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

The correct answer is an equation. Use the accuracy tab to generate variable values satisfying this equation so it can be marked accurately.


Advanced settings


Checking accuracy

Define the range of points over which the student's answer will be compared with the correct answer, and the method used to compare them.

Variable value generators

Give expressions which produce values for each of the variables in the expected answer. Leave blank to pick a random value from the range defined above, following the inferred type of the variable.

(this might be a )

Pattern restriction


Variables


String restrictions

(no maximum)

Advanced settings


(The midpoint of the minimum and maximum accepted values)


Advanced settings



Advanced settings


(not displayed in columns)
(no maximum)

Advanced settings


(not displayed in columns)
(no maximum)

For each choice, specify the number of marks to add or subtract when the student picks it.

For each choice, write 1 if the student should tick it, or 0 if they should leave it unticked.

You must set a maximum number of marks in order to use this marking method.

(no maximum)

Advanced settings


(no maximum)

You must set a maximum number of marks in order to use this marking method.

For each combination of answer and choice, specify the number of marks to add or subtract when the student picks it.

For each combination of answer and choice, write 1 if the student should tick it, or 0 if they should leave it unticked.

Both choices and answers must be defined for this part.

Advanced settings


(Same as correct answer)
(Same as correct answer)
(No limit)
(No limit)
(No limit)
(No limit)



Help with this part type



Base marking algorithm

                
Custom marking algorithm

Test that the marking algorithm works

Check that the marking algorithm works with different sets of variables and student answers using the interface below.

Create unit tests to save expected results and to document how the algorithm should work.

There's an error which means the marking algorithm can't run:


            
Your answer is being marked.

This is an extension type part. There is no expected answer, and it's assumed that the marking depends on interactions within the part's prompt.

You can test this part's marking algorithm by interacting with the rendering of the part's prompt below.

Your answer is being marked.
Gap Expected answer Student's answer
Feedback

Score:

Question variables

These variables are available within the marking algorithm.

Name Value

Marking parameters

These values are available as extra variables in the marking algorithm.

Name Value

Part settings

These values are available as entries in the settings variable.

Name Value

This feedback is based on your last submitted answer. Submit your changed answer to get updated feedback.

Warnings:

Alternative used:

These are the notes produced by this part's marking algorithm.

Note Value Feedback

Click on a note's name to show or hide it.


Unit tests

No unit tests have been defined. Enter an answer above, select one or more notes, and click the "Create a unit test" button.

The following tests check that the question is behaving as desired.

This test has not been run yet This test produces the expected output This test does not produce the expected output

This test is not currently producing the expected result. Fix the marking algorithm to produce the expected results detailed below or, if this test is out of date, update the test to accept the current values.

One or more notes in this test are no longer defined. If these notes are no longer needed, you should delete this test.

Name Value

Note Value Feedback
This note produces the expected output Current:
Messages

No feedback messages.

Warnings

No warnings.

Expected:
Messages

A difference in feedback messages does not cause this test to fail.

No feedback messages.

Warnings

A difference in warnings does not cause this test to fail.

No warnings.

This test has not yet been run.

When you need to change the way this part works beyond the available options, you can write JavaScript code to be executed at the times described below.

Run this script the built-in script.

This script runs after the built-in script.

To account for errors made by the student in earlier calculations, replace question variables with answers to earlier parts.

In order to create a variable replacement, you must define at least one variable and one other part.

Variable Answer to use Must be answered?

The variable replacements you've chosen will cause the following variables to be regenerated each time the student submits an answer to this part:

These variables have some random elements, which means they're not guaranteed to have the same value each time the student submits an answer. You should define new variables to store the random elements, so that they remain the same each time this part is marked.

More information about this problem

This part can't be reached by the student.

Add a "next part" reference to this part from another part.

None of the parts which can lead to this part are reachable either.

Next part options

Define the list of parts that the student can visit after this one.

  • Variable replacements

    No variable replacements have been defined for this next part option.
    Variable Value

Previous parts

This part can follow on from:

This part doesn't follow on from any others.

to

Choose a type for this new .

by
More information

Give a worked solution to the whole question.

Select extensions to use in this question.

  • There was an error loading this extension.

Define rulesets for simplification and display of mathematical expressions.

Functions

Define functions to use in JME expressions.

Select a function to edit.

No functions have been defined in this question.

Name Type
of
Output type

Built-in constants

Tick the built-in constants you wish to include in this question.

Custom constants

You can define constants in terms of the built-in constants, even if they're disabled.
Names Value LaTeX

Add styling to the question's display and write a script to run when the question is created.

This script will run after the question's variable have been generated but before the HTML is attached.
Apply styling rules to the question's content.

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?
Hasn't run yet Running Passed Failed
  • :

This question is used in the following exams: