327 results for "answer".

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  • Factorise a quadratic

    by Thomas Waters and 2 others

    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 Draft

    CC BY Published

    Last modified 03/10/2019 16:00

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  • IV time needed with a rate change (easier)

    Nursing question. IV question. Given volume required, the rate for some hours and then another rate afterwards, how long will it take to get the required volume? Answers are designed to be easy to handle, e.g. full hours, half hours, quarter hours and thirds of an hour.

    Question Ready to use

    CC BY-NC-SA Published

    Last modified 27/09/2019 03:53

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  • Mark the product of two matrices in a mathematical expression part

    A mathematical expression part whose answer is the product of two matrices, $X \times Y$.

    By setting the "variable value generator" option for $X$ and $Y$ to produce random matrices, we can ensure that the order of the factors in the student's answer matters: $X \times Y \neq Y \times X$.

    Question Draft

    CC BY Published

    Last modified 24/09/2019 15:27

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  • Question Draft

    CC BY Published

    Last modified 10/09/2019 14:01

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  • Gordon's copy of Deirdre's copy of Ask for significand and exponent of a number in scientific notation separately

    by Gordon Smith and 2 others

    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 08/09/2019 03:18

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  • Gizem's copy of factorise a quadratic (order of answers etc)

    by Gizem Intepe and 1 other

    Quadratic factorisation that does not rely upon pattern matching.

    Question Draft

    CC BY-SA Published

    Last modified 27/08/2019 00:58

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  • Johan's copy of Mark equations

    by Johan Maertens and 3 others

    All the answers in this question are equations. In order to mark each equation, Numbas needs to pick some values that satisfy the equation and some that don't, and check that the student's answer agrees with the expected answer.

    Any equation with the same solution set as the expected answer will be marked correct.

    Question Draft

    CC BY Published

    Last modified 18/08/2019 11:38

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  • Mark equations

    by Picture of Christian Lawson-Perfect Christian Lawson-Perfect and 2 others

    All the answers in this question are equations. In order to mark each equation, Numbas needs to pick some values that satisfy the equation and some that don't, and check that the student's answer agrees with the expected answer.

    Any equation with the same solution set as the expected answer will be marked correct.

    Question Ready to use

    CC BY Published

    Last modified 16/08/2019 12:31

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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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  • Only mark a gap depending on the answer to a previous gap.

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

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

    Question Should not be used

    CC BY Published

    Last modified 13/08/2019 11:54

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