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

Marks

Penalty for revealing steps

Correct answer

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

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Answer simplification rules

Show correct answer on reveal?

Show score feedback icon?

Show preview of student's answer?

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.

Checking type

Checking accuracy

Points to check

Maximum no. of failures

Checking range start

Checking range end

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

Pattern student's answer must match

Part of expression to mark

Partial credit for not matching pattern

Warning message

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Variables

Warn if student uses an unexpected variable name?

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String restrictions

Minimum length

Partial credit for short answer

Warning message

Maximum length

(no maximum)

Partial credit for long answer

Warning message

Required strings

Partial credit for not using all required strings

Show required strings in warning?

Warning message

Forbidden strings:

Partial credit for using any forbidden string

Show forbidden strings in warning?

Warning message

Penalty for revealing steps

Sort student's answers before marking?

Show score feedback icon?

Marks

Penalty for revealing steps

Minimum accepted value

Maximum accepted value

Advanced settings

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Precision restriction

Allow the student to enter a fraction?

Must the fraction be reduced?

Show fraction input hint?

Partial credit for unreduced fraction

Display the correct answer as a fraction?

Require trailing zeros?

Show precision restriction hint?

Partial credit for wrong precision

Message if wrong precision

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Allowed notation

Correct answer style

---

Show correct answer on reveal?

Show score feedback icon?

Marks

Penalty for revealing steps

Match test

Answer pattern

Display answer

Advanced settings

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Must the answer be in the correct case?

Partial credit for answer not matching case

Show correct answer on reveal?

Show score feedback icon?

Penalty for revealing steps

Shuffle order of choices?

Advanced settings

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Selection type

Number of display columns

(not displayed in columns)

Custom marking matrix?

Custom matrix expression

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Show correct answer on reveal?

Show score feedback icon?

Show choice feedback state?

Variable list of choices?

List of choices

• Marks: Distractor Message:

Penalty for revealing steps

Minimum marks

Maximum marks

(no maximum)

Advanced settings

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Number of display columns

(not displayed in columns)

Minimum answers

Maximum answers

(no maximum)

Shuffle order of choices?

What to do if wrong number of answers selected:

Custom marking matrix?

Custom matrix expression

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Show correct answer on reveal?

Show score feedback icon?

Show choice feedback state?

Variable list of choices?

List of choices

• Marks: Distractor Message:

Minimum marks

Maximum marks

(no maximum)

Penalty for revealing steps

Shuffle order of choices?

Shuffle order of answers?

Advanced settings

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Minimum answers

Maximum answers

(no maximum)

What to do if wrong number of answers selected:

Selection type

Layout

Custom layout expression

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Show correct answer on reveal?

Show score feedback icon?

Show choice feedback state?

Variable list of choices?

List of choices

Variable list of answers?

List of answers

Custom marking matrix?

Custom matrix expression

	Answers
Choices

Both choices and answers must be defined for this part.

Marks

Penalty for revealing steps

Correct answer

Advanced settings

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Number of rows

Number of columns

Allow student to change size of matrix?

Margin of error allowed in each cell

Gain marks for each correct cell?

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Precision restriction

Require trailing zeros?

Partial credit for wrong precision

Message if wrong precision

Allow the student to enter fractions?

Display numbers in the correct answer as fractions?

---

Show correct answer on reveal?

Show score feedback icon?

Marks

Penalty for revealing steps

Help with this part type

Marks

Show correct answer on reveal?

Show score feedback icon?

Penalty for revealing steps

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Use custom marking algorithm?

Extend base marking algorithm?

Base marking algorithm

Custom marking algorithm

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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:

	Name	Value

Regenerate values

Student's answer

Note Show all Hide all	Value	Feedback

Click on a note's name to show or hide it. Only shown notes will be included when you create a unit test.

Create a unit test

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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.

Run all unit tests

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.

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

Student's answer

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

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.

(active) (inactive)

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

Variable replacement strategy

Penalty when adaptive marking is used