default,Auto,automatic determination of some basic types\
raw,raw text,control of comparison by options\
numeric,Number, with tolerance of precision\
function,Numerical function, function with numerical tests\
equation,Numerical equation,equation with numerical tests\
exp,Mathematical expression
, with formal comparison\
text,Text, words or sentences\
multiple,Controlable multiple choices,buttons or menus\
atext,Approximative text, with identification of singular and plural etc.\
chembrut,Raw formula of a molecule,in chemistry\
chemdraw,Draw a molecule,with Java applet\
chemclick,Select atoms or bonds in a molecule,with Java applet\
chemeq,Chemical equation, with balance analysis\
clickfill,Drag-and-drop objets,text and image\
clicktile,Click and color tiles, need java\
compose,Compose, using given components\
coord,Click on image, recognition of coordinates and various regions\
correspond,Correspondance, establish the correspondance between pairs of objects\
chset,Set of characters,\
geogebra,Dynamic geometry,use applet GeoGebra\
javacurve,Java draw,\
jmolclick,Click on 3D atoms, use applet Jmol\
keyboard,Text, with keyboard\
matrix,Matrix, mathematical\
numexp,Rational numbers, fractional writing\
reorder
,Reordering
, given
list of objects\
set,Finite set,literal, formal or approximative\
sigunits,Sigunits,number with unit and significant digits\
symtext,Symtext,advanced tool of text identification\
units,Number with unit, for physics\
vector,Vector,formal comparison of components\
!set namelist=Basic types, Specific or advanced types
!set symtextlist=text atext raw compose
<center><h3>User replies to an exercise</h3></center> <p>
There are two basic ways in which an OEF exercise accepts user replies:
multiple choices and freestyle replies. User answers will be analyzed
according to the nature of the types. It is also possible to show
!href cmd=help&special_parm=feedback feedbacks
to the user when the answer meeds a specified condition (usually to warn a
typical error).
<p><h4>Multiple choices</h4> <p>
A multiple choice is
defined by giving a
list of good choices
(one or
several
) and another
list of bad choices
. <p
>Up to $choicelim simultaneous multiple choice questions can be asked for
one exercise
, under the
current implementation
. The number of good and bad
choices within one multiple choice question is unlimited (except a limit on
the length of the string imposed by WIMS).
<p>
See
!href cmd=help&special_parm=oef help on OEF format
for the syntax to
define a multiple choice
. <p><h4>Freestyle answers</h4> <p>
A freestyle answer is one which is typed by the user.
Up to $answerlim simultaneous freestyle answers can be asked for one
exercise
, under the
current implementation
. <p
>The syntax is as follows:
<tt>\answer{Texte}{\reponse}{type=...}{option=...}{weight=...}</tt>
<br>
(The last 3 fields are optional.)
<p>
<a name=freestyle></a>
Each freestyle answer can independently take one of the following types
.
!for i=1 to 2
<p><b>$(namelist[$i])</b>
!set n=!linecnt $(typelist$i)
<ul>
!for j=1 to $n
!set l=!line $j of $(typelist$i)
!distribute item $l into name,title
!set desc=!item 3 to -1 of $l
!if $name isitemof $special_parm or all isitemof $special_parm
<li><p><a name="_$name"></a>
!read help/anstype/$name.phtml
!if $name iswordof $symtextlist
<p>
<b>Remark</b>.
This type of reply accepts the symtext option. If the word
<tt>symtext</tt> is declared in the option of the reply, the analysis of
the reply will be exactly as for
!href cmd=help&special_parm=reply,symtext#_symtext symtext
, in particular with no preliminary processing of the texts. And all the
symtext options will be understood in this case.
!endif
<p>
!else
<li>
!href cmd=help&special_parm=reply,$name#_$name $title
(<tt>$name</tt>) $desc.
!endif
</ul>
<p>
Common option to freestyle answers: <tt>default</tt>. This option can take
the form <tt><font color=green>default="default_value"</font></tt>. If the
user gives an
empty reply
, it is the default_value that will take place
.
<p><h4>Testing conditions</h4> <p>
Under certain circumstances, it is desired that freestyle answers be tested
by special conditions (questions with multiple good answers, exercises
asking for examples, answers determined by inequalities, etc). This can be
done in the following way. <p>
If the good answer to a freestyle question is an undefined variable, the
answer to this question will be fed into this variable. The latter can then
be used to implement testing conditions. The score given to the exercise is
then determined by the number of testing conditions which are met, rather
than the number of answers which meet the good answers.
<p>
Up to
$condlim simultaneous conditions can be
defined for one
exercise
, under the
current implementation
. The syntax is
as follows
.<p><tt>
\condition{prompt text}{testing conditions}{weight=...}
</tt>
(The last field is optional.)
<p>
Here are some examples of testing conditions. (<tt>\ans1</tt> and
<tt>\ans2</tt> are undefined variables appearing in freestyle answers, as
described above.)
<small>
!href target
=wims_mhelp cmd
=help
&special_parm
=if Complete
list of relations
</small>
<p>
$table_header
$table_hdtr<th>Condition<th>meaning
$table_tr<td><tt>\ans1>=0 and \ans1<=1</tt>
<td>Good if <tt>ans1</tt> is within the interval [0,1].
$table_tr<td><tt>\ans1=1 or \ans1=3 or \ans1=5</tt>
<td>Good if <tt>ans1</tt> is 1, 3 or 5.
$table_tr<td><tt>(\ans1)*(\ans2)=6 and (\ans1)+(\ans2)=5</tt>
<td>Good if <tt>ans1</tt> and <tt>ans2</tt> are the two
roots of the polynomial x<sup>2</sup>-5x+6.
$table_tr<td
><tt
>sin(\ans1
)=0</tt
> <td>Good if <tt>ans1</tt> is a multiple of $m_pi.
$table_end <p>
See
!href cmd=help&special_parm=oef help on oef format
for the syntax for defining replies.
<h4>The optional parameter <tt>weight</tt></h4>
<a name=weight></a>
It is possible to give a weight to answers.
<p>
Example :
<pre>\answer{}{1}{type=numeric}{weight=8}
\answer{}{1}{type=numeric}{weight=2}
</pre>
One can put variables in <tt>weight</tt>.
<p>
Example :
<pre>
\text{w = \t = 1 ? 1 : 2}
\answer{}{1}{type=numeric}{weight=\t}
\answer{}{1}{type=numeric}{weight=3}
</pre>
<h4>The optional parameter <tt>option</tt></h4>
<a name=option></a>
The allowed options for <tt>\answer</tt>
or <tt>\condition</tt> are
<ul>
<li>
<tt>option=split</tt> : In case of type = <tt>correspond</tt>, <tt>checkbox</tt> or <tt>mark</tt>,
there will be partial score.
</li>
<li>
<tt>option=nonstop</tt> : In case of step exercises,
following questions are asked even if the answer is false.
</li>
<li>Following <tt>condition</tt> :
<tt>option=hide</tt> : The condition is used to analyze the
answer but will not be printed.
</li>
</ul>