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  • Ask for significand and exponent of a number in scientific notation separately

    by Picture of Christian Lawson-Perfect Christian Lawson-Perfect and 1 other

    This question shows how to ask for a number in scientific notation, by asking for the significand and exponent separately and using a custom marking algorithm in the gap-fill part to put the two pieces together.

    Answers not in standard form, i.e. with a significand not in $[1,10)$, are accepted but given partial marks.

    Question Draft

    CC BY Published

    Last modified 13/08/2019 20:21

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  • Displaying surd fractions

    Shows how to use the sqrtSquare simplification rule to display a randomly-chosen fraction involving surds on either the top or bottom.

    Question Draft

    No licence specified Published

    Last modified 26/06/2019 11:04

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  • LaTeX inside a randomised string

    Shows how to safely include LaTeX in a string variable.

    Question Draft

    CC BY Published

    Last modified 20/05/2019 09:06

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  • Expand a product of three binomials in $x$

    The student must expand an expression of the form $(x+a)(x+b)(x+c)$. A pattern restriction ensures there are no brackets in their answer.

    Question Draft

    CC BY Published

    Last modified 20/05/2019 08:24

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  • Student must pick all correct choices, and gets nothing otherwise

    A "match choices with answers" part where the student either gets all the marks or none. Any incorrect choice is penalised with a huge negative mark, so they end up with the minimum mark of 0.

    Question Draft

    No licence specified Published

    Last modified 04/09/2018 10:27

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  • Find position of a number in a sequence of intervals

    Given an ascending sequence of numbers, finds the index in the sequence of the first number greater than or equal to a given value.

    Question Draft

    CC BY Published

    Last modified 06/08/2018 11:27

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  • Decide which of two values is bigger

    The student has to compute $a^b$ and $b^a$, then decide which of the two is bigger.

    This question shows how to set up a custom marking matrix for the "choose one from a list" part, based on values used elsewhere in the question. It could use adaptive marking to use the student's incorrect values for the comparison, but doesn't at the moment.

    Question Draft

    CC BY Published

    Last modified 06/08/2018 09:56

    • No subjects selected
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  • Scientific notation - both significand and exponent must be correct

    by Picture of Christian Lawson-Perfect Christian Lawson-Perfect and 1 other

    The student must enter a number in scientific notation, with separate boxes for significand and exponent. They only get the marks if both elements are correct.

    Question Draft

    CC BY Published

    Last modified 01/08/2018 09:39

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  • All gaps must be correct

    An all-or-nothing marking scheme for a gap-fill part: the student must answer every gap correctly to get all the marks. If any gap is incorrect they get 0 marks for the whole part.

    Question Draft

    No licence specified Published

    Last modified 31/07/2018 08:52

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  • Award marks only if all correct choices are ticked

    This question contains a "choose several answers" part which has an "all-or-nothing" mark scheme: the student is only awarded marks if they tick all of the correct choices, and no incorrect choices.

    Question Draft

    CC BY Published

    Last modified 23/07/2018 08:20

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