How-tos

Should not be used: this relies on a custom JavaScript which is not guaranteed to continue working.

Wrap the student's answer in set() so it's marked as a set.

A couple of different ways of showing the correct answer to a single part as soon as the student submits an answer. One way allows the student to change their answer, while the other locks the part.

A third part includes a "reveal answers to this part" button, which allows the student to choose to reveal the answer to the part.

Think very carefully before using this: by revealing the answer, you are removing the opportunity for the student to later on realise they've got that step wrong, as a consequence of some further work. It's often possible to use adaptive marking to use the student's answer in place of the correct answer in later parts.

Obosolete: there's now a built-in function sort_by.

Defines a custom function sort_by to sort a list of lists by the elements at the given index.

You could do a similar thing to sort lists of dictionaries.

You can use LaTeX in marking comments, but remember to escape backslashes!

Should not be used: there's now a built-in function frequencies.

This question randomly generates a list of 100 items, each chosen from a list of strings.

It then computes the number of occurrences of each distinct item in the list. The statement shows the frequencies in a table.

No description given

This question shows how to load a GeoGebra applet from geogebra.org.

This exam uses a custom theme to provide no feedback about scores to the student.

The idea is to provide a version of the test compiled with this theme to the students as they attempt it. Once the test has closed, update with a version of the same test compiled with the default theme, so students can go back in and get feedback.

Call a custom function from another javascript custom function by using scope.evaluate

No description given

Demo question showing how to use the matrix maths functions in JavaScript.

Get the student to upload their experimental data in a CSV file, then ask them to compute statistics on it.

Defines a CSS class in the preamble which styles the "Lemma" environment, used in the statement.

Demonstrates that the marking algorithm for "match text pattern" parts doesn't put quotes around substituted strings any more.

One way of checking an equation is valid is to check that the difference between the LHS and RHS is 0.

In progress!

No description given

Do not use this: JME marking algorithms are the best way to change marking behaviour now, instead of JavaScript.

A very simple example of a custom marking script for a "choose one from a list" part

Using a shuffled list variable to randomise the order of all options in a multiple choice part except the last one.

Do not use this: adaptive marking is the best way to access the student's answer to another part.

Shows how to retrieve the student's answer to another part from a custom marking script.

Do not use this: alternative answers are the best way of accepting multiple correct answers.

Student is asked whether a quadratic equation can be factorised. If they say "yes", they're asked to give the factorisation.

A couple of different ways of asking the student to enter a large number, to get around the floating point imprecision problem.

No description given

Use the numbro.js extension to format numbers and currencies.

Display a number like "1234" as "1,234".

This question is out of date: the formatnumber function can format numbers using several different notational styles.

The function randexp, provided by an extension, generates a random string matching the given regular expression.

Update: you can now use the conditional visibility button to do this more easily - see the documentation.

If the statement or advice for your question differs greatly depending on a random variable (for instance, if you're picking from a selection of scenarios), you only want to show content for the relevant scenario.

This question shows one way of doing that.

This question is out of date: use the currency function instead.

Construct a line in a GeoGebra worksheet by writing its definition string by hand.

This isn't a very neat way of doing this. It's easier to define two points in GeoGebra, then make a line through those points. You can set the positions of the points from Numbas using vectors.