384 results authored by Christian LawsonPerfect  search across all users.

Question in Christian's workspace
An example to help debug a problem with GeoGebra.

Exam (1 question) in Demos
A few questions which use the GeoGebra extension.

Question in Quantities extension
Given a parcel's width, height and length, calculate its volume and surface area. Additionally, classify its size based on a formula inspired by a real delivery company (as mad as it sounds!).
The student must give units with each measurement.

Question in GCSE level questions
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Question in GCSE level questions
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Question in GCSE level questions
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Question in Christian's workspace
Work out \(k\) when \( y = kx^2\).

Question in GCSE level questions
Use the product rule (number of ways of doing A and B = (no. for A)*(no. for B)) to count the number of ways of doing two independent tasks.

Question in Christian's workspace
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Question in Christian's workspace
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Question in Christian's workspace
Experimental question using JSXGraph to provide dynamic, interactive graphs.

Question in Christian's workspace
An experiment is performed twice, each with $5$ outcomes
$x_i,\;y_i,\;i=1,\dots 5$ . Find mean and s.d. of their differences $y_ix_i,\;i=1,\dots 5$.

Question in Christian's workspace
Finding areas under graphs using definite integration.

Exam (3 questions) in Howtos
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.

Exam (5 questions) in Demos
This is an old demo. For a demonstration of Numbas's current features, please see the newest demo exam.
A few questions which show off various features of Numbas.

Question in Howtos
A demonstration of how to use the "variable list of choices" option for a "choose one from a list" part to shuffle only some of the choices, and always have the same "I don't know" choice at the end of the list.

Question in Howtos
The student is asked to factorise a quadratic $x^2 + ax + b$. A custom marking script uses pattern matching to ensure that the student's answer is of the form $(x+a)(x+b)$, $(x+a)^2$, or $x(x+a)$.
To find the script, look in the Scripts tab of part a.

Question in HowtosThe matrix entry part in this question marks any symmetric matrix as correct, using a custom marking algorithm. A matrix is symmetric if it is equal to its transpose.

Question in Demos
A demo of the mathematical expression part and its options.

Question in Demos
A demonstration of embedding various kinds of media in a question.

Question in Demos
A demo of the number entry part and its options.

Exam (17 questions) in Demos
Some questions to show off features of Numbas, linked from the Numbas homepage.

Question in Demos
Demonstration of the written number extension, which converts whole numbers to words.

Question in Demos
A demo of the choose several from a list part and its options.

Question in Demos
A demo of the match choices with answers part and its options.

Question in Demos
A demo of the gapfill part and its options.

Question in Demos
A demo of how custom marking algorithms can be used to replace the builtin marking methods.

Question in Demos
A demo of some custom part types.

Question in Demos
A demonstration of the random person extension, which picks representative names of people.

Question in Demos
A demo of the "quantities with units" extension and custom part type.