Could someone show me how to set up a question like this:

4(2x+6) as a calculated question where the numbers are chanageable ie {x} etc

Thanks paul

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Could someone show me how to set up a question like this:

4(2x+6) as a calculated question where the numbers are chanageable ie {x} etc

Thanks paul

Hi Paul,

I don't know much about calculated questions, as we provide a powerful way to deal with all math issues, including random generation of elements (numbers, functions, matrices, etc).

This is how to easily do it with WIRIS: http://www.wiris.com/quizzes/docs/manual/randomness.

Hope it helps! Best regards,

Carles

Hello,

I have nothing against Wiris "supporters" advertsing it at each occasion possible, but I deeply regret they never says it's a **COMMERCIAL** product and it is** NOT FREE**. So now I will post these "precisions" each time.

Dear Jean-Michel,

WIRIS tools are commercial and I thought it was fairly clear if I sent a link to the www.wiris.com site.

Secondly, I am not a WIRIS supporter, I work at Maths for More, the company responsible for WIRIS. You'll see me at the front page of our site, which is as public and up-front as we can do.

Thirdly, Paul made a very specific question and he got an explanation on how he can solve his problem with our tools. There is a difference from advertising, which we also do, for example at http://www.moodlenews.com/, and answering a specific question to a Moodle user who may find it of interest to solve his problem.

And finally, I am sorry about the misinterpretation, as my comment did not intend to offend anyone nor did it break any forum rule. Commercial tools are a very important complement to many Moodle users, just as much as Moodle partners are to the Moodle organisation. I am sure that many appreciate the work of the professionals working to enhance Moodle and to make Moodle possible.

Best regards,

Carles Aguiló

carles@wiris.com

+34.650.906.201

Hello Paul,

First your question is a little unclear :

Do you want the x letter to be displayed to student as in the question "Give the derivative of the function f(x) = 2x^{2} + 6". Answer is "8x" and have the numbers 2 and 6 not to be the same at each attempt

Or donc you want the x letter to be replaced by a different value at each student's attempt for instance Question "Calculate the product of 2x +3 and x+6" and have student see "calculate the product of 7 and 8" if x is replaced by the value 2.

Depending of your answer I can say if calculated can do it or point you to other free types of questions that can do it.

Dear Jean-Michel,

do not wish to steal Paul's thread, but if you had an answer to :

"Do you want the x letter to be displayed to student as in the question "Give the derivative of the function f(x) = 2x^{2} + 6". Answer is "8x" and have the numbers 2 and 6 not to be the same at each attempt"

I'd love to hear it (or any other FREE solution)! In case it makes a difference, I have Moodle 2.1.

Hello,

Well unfortunately as you are using Moodle 2.1, I don't have a complete solution

Algebra question type would permit a question like that and I have released a 2.1 version here but you would not be able to have the numbers 2 and 6 not to be the same at each attempt. So you will have to create a category, create several algebra question with differents numbers in that category, and choose a random question from that category in the quiz. So not a perfect solution.

Formulas question type would permit that question (and many others even more complex) but unfortunately I finished the version for Moodle 2.0 a few days ago and the version for Moodle 2.1 is a lot more work wich is not finished (the magnitude of changes for a question types si a lot greater between 2.0 and 2.1 than between 1.9 and 2.0) so I can give any date for the release of the 2.1 version.

Please note that I am not the author of these 2 questions types. Roger Moore created algebra questions and Hon Wai Lau created formulas questions.

I am only a poor (so I certainly can't afford things like Wiris, I can't even afford a decent hosting for my Moodle server !) french math teacher, I absolutly want to switch to Moodle 2.1 from next september so I spend many hours during my summer holidays upgrading plugins that I want to use

Jean-Michel, thanks so much - I am free riding on all the good and helpful people like you, so the last thing I'd ever want to do is put pressure on you developers, and I am very grateful for the massive amount of work you put into this - I wish I were able to help more constructively!

As for

"I am only a poor (so I certainly can't afford things like Wiris"

that makes two of us

Well, as they say, time is money: http://articles.cnn.com/2002-05-29/tech/time.money_1_pence-formula-average-cost?_s=PM:TECH

WIRIS quizzes can save you a lot of time and thus a lot of money, but I understand that not every university department has a philosophy that takes both variables into account. Fortunately, many do, and some governments also, so they acquire free access for their whole country

All the best,

Carles

sure, time is money, but there are people that are cash short and time rich, and other that are short on both cash *and* time. And while I have no reason to doubt that WIRIS is a great product, in my limited experience with other commercially available virtual learning platforms, as a teacher you end up spending an inordinate amount of time customising the questions, dealing with the administration of the thing, coping with unexpected software behaviour, complaints form students that things do not behave as they should, and with all the good will in the world there is generally no technical support available at 2 in the morning

The inefficient part of it is that any customization that is succesfully achieved by teacher A is seldom available to teacher B, as, perfectly in line with the commercial logic, teacher A cannot see why he should make his improvements available for free to anyone else.

The great benefit of Moodle and its wonderful community is that the contributors make their developments (which cost a lot of work) available to the whole community at no monetary cost, with the implicit expectation that everyone will contribute what they can within their abilities (which includes donations by the less cash constrained, by the way).

end of moralizing lecture

Dear Paola,

I understand your concern with commercial platforms. However, I have to make the precision that WIRIS quizzes is no platform, but a seamless integration with the module Quiz. We don't even add a new question type to the module, but simply add the possibility to define variables in a mathematics section and use them in the wording or the check of the answer. On the default Moodle question types. You can try it yourself in our Moodle demo: www.wiris.com/demo-moodle. You'll see that it is also multilingual (I'm just deducing from your name, but you may appreciate the feature).

We are well aware of the good impact that the Moodle community has on the work of its users. This is why we have set up a Moodle (with a Drupal front-end) for our users to share their contents using the licensing that they choose, and up to date, we have more than 1 500 exercises, all of them shared under a Creative Commons license... Oh!, I got so passionate that I almost forgot: http://collection.wiris.com/quizzes. Feel free to use from here (the URL of each exercise is stable) or to download to your own Moodle (you need to install WIRIS then, of course, which is free for some users, but normally requires a license).

And about the donations, we give a small amount of every Moodle license that we sell to Moodle. It is admittedly small (as the typical license is), but you'll see us very often in the listings.

End of moralizing answer , and I have to say that I appreciate your respectful, honest post. Thank you for that.

Paola,

Yes i would like the numbers to be changeable as in {a} but the x to be displayed.

Regards, Paul

Jean-Michel,

Thank you for your reply.

I'm sorry I didn't make my request clear.

What I would like to be able to do is create simple calculated questions like this:

{a}({b}x + {c}) where an example might be 3(4x + 5) =12x + 15.

Thanks for your input.

Regards, Paul

You really would like to use STACK developed by Chris Sangwin. See http://www.stack.bham.ac.uk/wiki/index.php/Main_Page. STACK is available for moodle 1.9, and will be available for moodle 2.1 shortly.
--Mika Seppälä

Mika,

Thanks for the suggestion.

I can't access the link.

Regards, Paul

Sorry Mika,

isn't STACK going to be incorporated in Moodle 2.1 before the next UK academic year, or have i misunderstood?

No. There will be a new version of STACK that will work with the changed quiz module in Moodle 2.1+, but STACK and Moodle will remain as two separate systems that link with each other.