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type=order first
textarea="data explain"
iEdit="explain"

:Reorder items correctly, drag-and-drop.

<p>
It presents a list of items to be reordered correctly by dragging and dropping the items in the right place. <p>
To make an exercise with this model, type the list of
items to be sorted and change the instruction.
</p><p>
With a slight modification, a variant of this model can accept images as items.
</p>
<p class="wims_credits">Author of the model: <a href="mailto:qualite@wimsedu.info">Gang Xiao</a></p>

:%%%%%%%%%%%%%%%%%      ATTENTION      %%%%%%%%%%%%%%%%%%%%

Remove the above header if you destroy the model tags, i.e. the lines starting
with a ':'. Otherwise the exercise might not be recognised by Createxo.

:%%%%%%%% Example parameters to be redefined %%%%%%%%%%%%%%%%%

:\title{Reorder (drag and drop)}
:\author{XIAO, Gang}
:\email{qualite@wimsedu.info}
:\credits{}

:Number of items to be sorted per exercise: up to 20.
If this number is lower than the available items, a random subset of the
items will be presented to the learner. <p>
If this number is greater than the available items, it will be truncated
to the number of items.
\integer{tot=6}

:The size of labels to drag, in pixels, x times y.
Think of people who have to increase the font size of their browsers to see well! Don't make the labels too small.
\text{size=80x40}

:The list of items to reorder
Write the itemss in the correct order, separated by commas.
\text{data=Mercury,Venus,Earth,Mars,Jupiter,Saturn,Uranus,Neptune}

:Instructions
\text{explain=
Please put the following planets of the solar system into the right order, with
the closest to the Sun in first position.
}

:Embraced random items
$embraced_randitem
\text{accolade=item(1,1 yes,
2 no)}

:%%%%%%%%%%%%%% Nothing to modify before the statement %%%%%%%%%%%%%%%%
\text{data=randomrow(\data)}
\text{accolade=wims(word 1 of \accolade)}
\text{data=\accolade=1 ? wims(embraced randitem \data)}
\integer{datacnt=items(\data)}
\integer{tot=min(20,min(\tot,\datacnt))}
\if{\tot<\datacnt}{
 \text{sh=shuffle(\datacnt)}
 \text{sh=wims(sort numeric items \sh[1..\tot])}
 \text{data=item(\sh,\data)}
}

\text{st=wims(makelist r x for x=1 to \tot)}
\steps{\st}

:%%%%%%%%%%%%% Now the statement in html. %%%%%%%%%%%%%%%%%%%%

::You don't need to modify this in general.

\statement{
  <div>\explain</div>
  \for{k=1 to \tot}{<div class="inline">\embed{r\k,\size}</div>}
}

:%%%%%%%%%%%%% Nothing to modify after. %%%%%%%%%%%%%%%%%5

\answer{1}{\data[1]}{type=dragfill}
\answer{2}{\data[2]}{type=dragfill}
\answer{3}{\data[3]}{type=dragfill}
\answer{4}{\data[4]}{type=dragfill}
\answer{5}{\data[5]}{type=dragfill}
\answer{6}{\data[6]}{type=dragfill}
\answer{7}{\data[7]}{type=dragfill}
\answer{8}{\data[8]}{type=dragfill}
\answer{9}{\data[9]}{type=dragfill}
\answer{10}{\data[10]}{type=dragfill}
\answer{11}{\data[11]}{type=dragfill}
\answer{12}{\data[12]}{type=dragfill}
\answer{13}{\data[13]}{type=dragfill}
\answer{14}{\data[14]}{type=dragfill}
\answer{15}{\data[15]}{type=dragfill}
\answer{16}{\data[16]}{type=dragfill}
\answer{17}{\data[17]}{type=dragfill}
\answer{18}{\data[18]}{type=dragfill}
\answer{19}{\data[19]}{type=dragfill}
\answer{20}{\data[20]}{type=dragfill}