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For each stage, the teacher can define the list of series of exercises in the class for which the
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For each stage, the teacher can define the list of series of exercises in the class for which the
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score is used for computing the level of acquisition of the stage.
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score is used for computing the level of acquisition of the stage.
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<p></p>
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<p></p>
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The teacher of the class can decide that some virtual sheets are neutralized when computing the 
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The teacher of the class can decide that some virtual worksheets are neutralized when computing the 
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degree of acquisition of the stages in the notebook of skills (it allows to keep the educational 
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degree of acquisition of the stages in the notebook of skills (it allows to keep the educational 
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data from one year to the next while allowing to begin validating some skills).
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data from one year to the next while allowing to begin validating some skills).
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The computation of the level of acquisition is done as follows :
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The computation of the level of acquisition is done as follows :
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<center>
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<center>
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</center>
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</center>
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where
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where
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<ul>
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<ul>
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 <li> <i>N</i> is the number of exercise series occuring in the stage.</li>
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 <li> <i>N</i> is the number of exercise series occuring in the stage.</li>
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 <li> <i>L</i> is the list of exercise series occuring in the stage. Each element of this list contains 
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 <li> <i>L</i> is the list of exercise series occuring in the stage. Each element of this list contains 
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 the number of the sheet (denoted by  L[i;1]) and the number of the exercise series 
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 the number of the worksheet (denoted by  L[i;1]) and the number of the exercise series 
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 in the sheet (denoted by L[i;2]).</li>
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 in the worksheet (denoted by L[i;2]).</li>
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 <li> 
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 <li> 
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  !insmath X_{i,j}
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  !insmath X_{i,j}
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  is the quality score for the exercise series <i>j</i> of the sheet <i>i</i>.</li>
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  is the quality score for the exercise series <i>j</i> of the worksheet <i>i</i>.</li>
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 <li> 
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 <li> 
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  !insmath \delta_i
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  !insmath \delta_i
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  is 1 if the sheet <i>i</i> is not in the list of sheets desactivated for the calculation of 
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  is 1 if the worksheet <i>i</i> is not in the list of worksheets desactivated for the calculation of 
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  the acquisition level of the stages and <i>0</i> else.</li>
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  the acquisition level of the stages and <i>0</i> else.</li>
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 <li> NM(a) is <i>1</i> if  and <i>a</i> is more than the minimal score needed 
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 <li> NM(a) is <i>1</i> if  and <i>a</i> is more than the minimal score needed 
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 to consider that a series is correctly done and <i>0</i> else 
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 to consider that a series is correctly done and <i>0</i> else 
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 (choosing this minimal score to <i>0</i> neutralizes this option).
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 (choosing this minimal score to <i>0</i> neutralizes this option).
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 </li>
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 </li>
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</ul>
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</ul>
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<p></p>
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<p></p>
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<b><u>Remark</u></b>: if you change the status of a virtual sheet, class participants have to exit
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<b><u>Remark</u></b>: if you change the status of a virtual worksheet, class participants have to exit
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the skill booklet to view change
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the skill booklet to view change
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if they are looking at the skill booklet. If not, acquisition level will be totally wrong !!!
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if they are looking at the skill booklet. If not, acquisition level will be totally wrong !!!