Hi at all

Is it possible to randomize statements about mathematical sentences and applications (answered by false or true) in one exercise, so that the students get different statements to answer ?

Greetings Regine

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Hi at all

Is it possible to randomize statements about mathematical sentences and applications (answered by false or true) in one exercise, so that the students get different statements to answer ?

Greetings Regine

Probably yes, if you use the 'Calculated multi-choice' question type.

But, why ask true-false questions about maths? Why not ask open-ended questions. Have a look at the STACK and formulas question types. https://moodle.org/plugins/qtype_stack https://moodle.org/plugins/qtype_formulas

Hi Tim,

my professor want to have such questions, she has got about 50 true/false-questions and want to have different for every student (she want to prevent that the students write off each other).

For example:

the scalar product of a vector with itself is undefined

a polynomial is everywhere differentiable

every absolute extremum is a relative extremum

for the Newton method, the function f must be differentiable in the corresponding interval.

And so on.

I need a list/vector or similar to write in the statements/propositions.

The multi-choice-type only works for Maxima-expressions, doesn't it? But I want to use text....🤔

Greetings Regine

my professor want to have such questions, she has got about 50 true/false-questions and want to have different for every student (she want to prevent that the students write off each other).

For example:

the scalar product of a vector with itself is undefined

a polynomial is everywhere differentiable

every absolute extremum is a relative extremum

for the Newton method, the function f must be differentiable in the corresponding interval.

And so on.

I need a list/vector or similar to write in the statements/propositions.

The multi-choice-type only works for Maxima-expressions, doesn't it? But I want to use text....🤔

Greetings Regine

Hi Regine,

in STACK questions it is also possible to use strings in multiple-choice-questions. I'm not quite sure, how your question should look like, but you could do something like:

t[1]:"the scalar product of a vector with itself is undefined";

t[2]:"a polynomial is everywhere differentiable";

f[1]:"every absolute extremum is a relative extremum";

f[2]:"..."

tos:makelist(t[i],i,1,2); /*a list with all the true items*/

fos:makelist(f[i],i,1,2); /*a list with all the false items*/

multisel:multiselqn(tos,1,fos,1); /*pick 1 true and 1 false option*/

ta:multisel[1]; /*create your MCQ-array*/

version:multisel[2];

And then ask: "Which of the following are true?"

It is important to have at least one true answer or you always add a "None" (otherwise a technically correct answer would count as "not answered")

As far as I know it is not possible though to include LaTeX expressions in your answers.

You can also have a look at the documentation on GitHub

Stephan.

Hi Stephan

thx a lot for your inducement! Now I try it... and that takes a while now

Greetings Regine

In that case, just make true-false questions, and use the normal way of adding a random selection to the quiz: https://docs.moodle.org/en/Building_Quiz#Adding_a_random_question

I think it really depends on what you want. If you have a whole test with only these kind of yes-no-questions your suggestion would probably be better.

But if you have other (extensive) questions as well you might want to put all these yes-no-questions into one question of the test and still pick the options randomly.

Hi Tim,

We have true-false-questions and other questions. My colleagues tested "adding a random question", but the moodle server breaks down. So they get the idea to randomize the statements within the questions.

Greetings Regine