Tipo de pregunta Fórmulas

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note icon.png Existe documentación diferente para varias versiones de Moodle: Esta documentación es para Moodle 3.1 y más recientes. Existe documentación anterior (del 2014) en 30/Tipo de pregunta fórmulas.



Documentación completa

La documentación para el tipo de pregunta Fórmulas se basa en la del proyecto original de Hon Wai Lau (disponible en Google Code Archive). El contenido se ha modificado y actualizado ligeramente para que coincida con Moodle 2.0 y posteriores.

Use the navigation menu on the right in order to access the different pages of the documentation. You can also use the links in the Formulas question type category.

Ejemplos

Click the Juega la prejunta buttons to play the examples. You can also download the questions file (Moodle XML format) from the Play it site.

Juega la prejunta   Sitio Juega la prejunta

Información de acceso:     Inicie sesión como 'student ' con contraseña 'Moodle2018# '  

Tip

  • Ctrl+Shift+Click button to open link in a new foreground tab

You may also

  • Ctrl+Click button to open link in a new background tab
  • Shift+Click button to open link in a new window

Also, the original examples in Hon Wai Lau's original project can be found in the file called 'sample-formulas-questions.xml' (Moodle XML format) located in the 'moodle/question/type/formulas/sample' folder. Use the Importar preguntas option (Moodle XML) to put them into your Banco de preguntas and see how they work.

Características

  • Random values. Each student can receive questions with unique values and wording.
  • Multiple subquestions. Multiple subquestions can be made to share the same set of random variables.
  • Multiple answers. Multiple answer boxes can be used for one subquestion.
  • Different answer types. Both numerical answers with units and algebraic answers can be used.
  • Grading criterion. In addition to simple absolute error, responses from students can be graded using any formula.
  • Units. Supports units and SI unit conversions. SI units with different SI prefixes are accepted using a built-in conversion rule.
  • Multiple trials. A finite or infinite number of trials can be specified for each subquestion.

El tipo de pregunta Fórmulas es para Usted!

El tipo de pregunta Formulas es un plugin para Moodle con valores aleatorios y campos de respuesta múltiple. Los campos de respuesta pueden colocarse en cualquier parte de la pregunta, para que Usted pueda crear estructuras de respuesta variadas; como por ejemplo, coordinadas, polinomio, matríz, etc. Otras características, tales como revisión de unidades y sub-preguntas múltiples, también están disponibles. Estas funcionalidades pueden simplificar la cración de preguntas en muchos campos relacionados con matemáticas, números y unidades, como por ejemplo, física e ingenierías.

¡Si Usted está tratando con problemas como los descritos debajo, entonces el tipo de pregunta Formulas es para Usted!

Tome un problema en ingeniería estructural, por ejemplo, que puede involucrar varios parámetros cun un número de valores fijos y conocidos, como por ejemplo:

 Parámetro                       Valores posibles
 Bolt diameter (mm)              16, 20, 22, 24, 27, 30, 36
 Plate thickness (mm)            16, 20, 25, 35, 40, 50
 Steel strength (MPa)            300, 345, 350, 380
 Concrete strength (MPa)         20, 25, 30
 Reinforcing bar diameter (mm)   9.5, 12.7, 15.9, 19.1, 22.2, 25.4

A question that involves the five parameters, each with their possible values, has 7 x 6 x 4 x 3 x 6 = 3024 different possible versions, much more than the limit of 100 in the Calculated question.

Even a simple question in basic mathematics can have a large number of possible versions. The following one has 5 x 5 x 8 = 200 different possible versions:

  Find the value of x = a*(b + c)
  where
   • a is an odd number between and including 1 and 9
   • b is an even number between and including 2 and 10
   • c is an integer value between and including 1 to 3 or 7 to 11

This kind of question can be easily created using the Formulas question. When creating the question, you would enter your sets of numbers in the 'Random variables' field as:

  a = {1:10:2};
  b = {2:11:2};
  c = {1, 2, 3, 7:12};

Note that sets of numbers can be in the format {start:stop:interval}, for example {1:10:2} and {2:11:2}. (The stop value is not included in the set and the interval is set to 1 when not specified). Sets of numbers can also be in the format of a list such as {1,2,3} for the set of numbers 1, 2 and 3. They can even be in a combination of the two formats, such as {1, 2, 3, 7:12}.

When an attempt is started, a, b, and c will take a value drawn from the corresponding set at random. If you want, you can define other variables as a function of the random ones in the 'Global variables' field. For instance, if you need the value of a + 2*b somewhere in your question (that is the main question, subquestions, hints and feedbacks), just define a new variable, say d, in the 'Global variables' field:

  d = a+2*b;

Once you have defined your variables, you can display them by putting them in curly braces, i.e. {a}, {b}, {c}, {d}, anywhere in the question.

Another advantage of the Formulas question is that a question can have several subquestions, called ‘parts’, that can share the same variables. The Formulas question also has a complete unit system that is quite useful for physics and engineering.

The Formulas question type is very powerful and permits the making of a wide range of questions. Although mastering all its possibilities require some practice, the basics can be learned quickly.

Una vez que empiece a dominar el tipo de pregunta de Fórmulas, se dará cuenta de lo fácil que es usarlo, y cuán efectivo y completo es.

Agradecimientos

The Formulas question was originally written by Hon Wai Lau in about one year during 2009 and 2010, while he was working for the Physics Department at the Hong Kong University of Science and Technology.

Hon Wai Lau's Formulas question original project can be found on Google Code Archive. Note that the initial name 'Coordinate question ' was later changed to 'Formulas question'. Hon Wai Lau's original Formulas question is compatible with Moodle 1.9 and 2.0.

The Formulas question was upgraded to the new question engine, introduced in Moodle 2.1, by Jean-Michel Védrine, professor of Statistics and Computing at the Institut Universitaire de Technologie in Saint-Étienne, France. The upgraded version of the Formulas question is compatible with Moodle 2.3 and later versions, currently up to Moodle 3.1.

The current Formulas question project can be found on GitHub.

Maintainer(s)

Jean-Michel Védrine has maintained the Formulas question type plugin until 2017. He is now back in force for 2018.

Installación

The Formulas question is a Moodle plugin, so you or your Administrator must instalarlo.

Prior to installing the Formulas question though, you need to install instalar otro plugin., that is Tim Hunt's adaptive multipart behaviour, available from GitHub or from the Moodle Plugins directory. Note that you need version 3.3 or newer of this behaviour, because the Formulas question will not work with previous versions.

You can then install the Formulas question either from the Moodle Plugins directory, from GitHub or from a zip file:

Installing from the Moodle Plugins directory

The Formulas question is available from the Moodle Plugins drectory. Install the Formulas question as any other Moodle question type plugin.

Installing from GitHub

The Formulas question is available at the author's Github repository. To install the question, type the following commands in the root of your Moodle install:

  git clone git://github.com/jmvedrine/moodle-qtype_formulas.git question/type/formulas echo '/question/type/formulas/' >> .git/info/exclude

Installing from a zip file

Download the zip file from GitHub. Unzip the file in the 'question/type' folder and then rename the new folder to 'formulas'.

Moodle Tracker

Fecha Autor Título y enlace
2010-08-27 Hon Wai Lau New question type: Formulas
2015-12-17 Tikva Formulas question type does not support expressions calculation
2016-06-14 Renaat Debleu Formulas question type does not support local number formatting

Discusiones en foros (en idioma inglés)

Fecha Autor Título y enlace
2010-08-15 Hon Wai Lau New question type: coordinates
2010-11-30 Hon Wai Lau Formulas question type
2011-07-12 Jean-Michel Védrine Formulas question type for Moodle 2.0
Formulas page 24
2015-05-31 George Franz Multiple fill-in-the-blanks graded together
2015-11-26 Bernat Martinez An experience on training teachers...
2016-06-03 Bernat Martinez A CHECK button for each part (for multipart question & adaptive behaviour)
2016-06-13 Peter Halverson Formulas questions errors after 2.9 to 3.1 upgrade
2016-07-12 Alessandro Bucca quiz Formulas plugin
2016-07-14 Matthias Giger Formulas: Using gcd()
2016-07-27 Dominique Bauer Where is the "Check" button in the code?
2016-07-30 Bernat Martinez Format check initialization fail
2016-09-21 florian tobé Create units conversion exercises
2016-10-23 Jarrod McCombie Lab Quiz
2016-11-24 Godfrey Sovis Algebra and Formulas qtypes
2016-12-01 Bernat Martinez PHP error in Formulas question
2017-01-02 Kalyan Chatterjea Formulas Question Type
2017-01-05 Bernat Martinez Grading criteria checkbox not displayed in Boost theme
2017-02-11 Dominique Bauer Suggestion to improve the input format for units
2017-05-09 Miro Iliaš Algebra expression validator for calculated questions
2017-07-10 Jonas Ceponis Text as an answer to calculated questions
2017-07-26 shahin k Dependent answers in two-part questions
2017-08-09 lucia liljegren Formulas question: size of entry box
2017-10-04 Maurício Reis Formulas Type Question Maintenance
2017-12-11 lucia liljegren Formula Question: Mixing text and numbers in answer
2017-12-12 François Lizotte Feedback in Formulas question type

Traducciones disponibles

El complemento de pregunta Fórmulas está disponible en los siguientes idiomas:

  • Inglés
  • Francés
  • Español | Mexicano


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