Document (#27034)

Author

Schultka, H.

Title

Zur Vermittlung der Funktionsweise der Booleschen Operatoren AND, OR, NOT

Source

Bibliotheksdienst. 37(2003) H.11, S.1438-1449

Year

2003

Abstract

Wenn man im Rahmen einer 45-minütigen Unterrichtsstunde für Schüler der gymnasialen Oberstufe, also der 10. bis 12. Klassen, zum Thema "Die Recherche im Online-Katalog" die Funktionsweise der Booleschen Operatoren AND, OR und NOT erklären soll, verbleibt dafür nur ein kleiner Zeitanteil innerhalb der Unterrichtsstunde. Wenn man im Rahmen der kommunikationswissenschaftlichen Propädeutik eine 2-stündige Lehrveranstaltung für die Studienanfänger zum Thema "Die kommunikationswissenschaftliche Recherche in Katalogen und Datenbanken - Grundlagen sowie allgemeine und Fachinformationsmittel" durchführen soll, wird auf die Erläuterung der Funktionsweise der Booleschen Operatoren ebenso nur ein kleiner Zeitanteil der gesamten Veranstaltungszeit entfallen. Die Dauer der Veranstaltungen von 45 Minuten bzw. 2 Stunden ist jeweils von außen - durch den Kunden - erbeten/vorgegeben worden. Die Frage ist nun die: Wie kann man neben zahlreichen anderen Inhalten die Funktionsweise der Booleschen Operatoren den Lernenden in den genannten Veranstaltungen in einem kurzen Zeitintervall vermitteln, und zwar so vermitteln, dass die Veranstaltungsteilnehmer wissen, welche Funktion diese Operatoren besitzen? Die Pädagogik hat sich schon immer (u. a.) damit beschäftigt, wie man am schnellsten, besten, nachhaltigsten, leichtesten einen Lehr- bzw. Lerninhalt an die Lernenden vermitteln kann. Da es jedoch nicht die absolute Methode gibt und auch die Superlative "am schnellsten, besten, nachhaltigsten, leichtesten" relativ sind, wird man als Pädagoge auf der Suche und damit auf dem Weg bleiben. Ich möchte hier meine methodischen Varianten vorstellen, mit denen ich die Funktionsweise der Booleschen Operatoren zu vermitteln suche.

Similar documents (content)

1. Long, J.: Google hacking (2008) 0.16

   0.1590194 = sum of:
     0.1590194 = product of:
       0.9938713 = sum of:
         0.020091621 = weight(abstract_txt:kann in 3925) [ClassicSimilarity], result of:
           0.020091621 = score(doc=3925,freq=1.0), product of:
             0.047542367 = queryWeight, product of:
               4.507782 = idf(docFreq=1330, maxDocs=44421)
               0.010546732 = queryNorm
             0.42260456 = fieldWeight in 3925, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.507782 = idf(docFreq=1330, maxDocs=44421)
               0.09375 = fieldNorm(doc=3925)
         0.08009498 = weight(abstract_txt:besten in 3925) [ClassicSimilarity], result of:
           0.08009498 = score(doc=3925,freq=1.0), product of:
             0.11952929 = queryWeight, product of:
               1.5856115 = boost
               7.1475906 = idf(docFreq=94, maxDocs=44421)
               0.010546732 = queryNorm
             0.6700866 = fieldWeight in 3925, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.1475906 = idf(docFreq=94, maxDocs=44421)
               0.09375 = fieldNorm(doc=3925)
         0.24463639 = weight(abstract_txt:funktionsweise in 3925) [ClassicSimilarity], result of:
           0.24463639 = score(doc=3925,freq=1.0), product of:
             0.3415059 = queryWeight, product of:
               4.237685 = boost
               7.6410246 = idf(docFreq=57, maxDocs=44421)
               0.010546732 = queryNorm
             0.716346 = fieldWeight in 3925, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.6410246 = idf(docFreq=57, maxDocs=44421)
               0.09375 = fieldNorm(doc=3925)
         0.64904827 = weight(abstract_txt:operatoren in 3925) [ClassicSimilarity], result of:
           0.64904827 = score(doc=3925,freq=2.0), product of:
             0.55201715 = queryWeight, product of:
               5.901963 = boost
               8.868255 = idf(docFreq=16, maxDocs=44421)
               0.010546732 = queryNorm
             1.1757755 = fieldWeight in 3925, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               8.868255 = idf(docFreq=16, maxDocs=44421)
               0.09375 = fieldNorm(doc=3925)
       0.16 = coord(4/25)
   

2. Eibl, M.: Visualisierung der Recherche in Dokument-Retrievalsystemen : Methoden und Lösungen (1999) 0.16

   0.15545736 = sum of:
     0.15545736 = product of:
       0.9716085 = sum of:
         0.020091621 = weight(abstract_txt:kann in 4432) [ClassicSimilarity], result of:
           0.020091621 = score(doc=4432,freq=1.0), product of:
             0.047542367 = queryWeight, product of:
               4.507782 = idf(docFreq=1330, maxDocs=44421)
               0.010546732 = queryNorm
             0.42260456 = fieldWeight in 4432, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.507782 = idf(docFreq=1330, maxDocs=44421)
               0.09375 = fieldNorm(doc=4432)
         0.050984185 = weight(abstract_txt:recherche in 4432) [ClassicSimilarity], result of:
           0.050984185 = score(doc=4432,freq=1.0), product of:
             0.088449314 = queryWeight, product of:
               1.3639764 = boost
               6.148508 = idf(docFreq=257, maxDocs=44421)
               0.010546732 = queryNorm
             0.57642263 = fieldWeight in 4432, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.148508 = idf(docFreq=257, maxDocs=44421)
               0.09375 = fieldNorm(doc=4432)
         0.44158623 = weight(abstract_txt:booleschen in 4432) [ClassicSimilarity], result of:
           0.44158623 = score(doc=4432,freq=1.0), product of:
             0.50628436 = queryWeight, product of:
               5.1597285 = boost
               9.303573 = idf(docFreq=10, maxDocs=44421)
               0.010546732 = queryNorm
             0.8722099 = fieldWeight in 4432, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.303573 = idf(docFreq=10, maxDocs=44421)
               0.09375 = fieldNorm(doc=4432)
         0.45894644 = weight(abstract_txt:operatoren in 4432) [ClassicSimilarity], result of:
           0.45894644 = score(doc=4432,freq=1.0), product of:
             0.55201715 = queryWeight, product of:
               5.901963 = boost
               8.868255 = idf(docFreq=16, maxDocs=44421)
               0.010546732 = queryNorm
             0.83139884 = fieldWeight in 4432, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.868255 = idf(docFreq=16, maxDocs=44421)
               0.09375 = fieldNorm(doc=4432)
       0.16 = coord(4/25)
   

3. Frederichs, A.: Natürlichsprachige Abfrage und 3-D-Visualisierung von Wissenszusammenhängen (2007) 0.10

   0.102147155 = sum of:
     0.102147155 = product of:
       0.63841975 = sum of:
         0.013394414 = weight(abstract_txt:kann in 1566) [ClassicSimilarity], result of:
           0.013394414 = score(doc=1566,freq=1.0), product of:
             0.047542367 = queryWeight, product of:
               4.507782 = idf(docFreq=1330, maxDocs=44421)
               0.010546732 = queryNorm
             0.28173637 = fieldWeight in 1566, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.507782 = idf(docFreq=1330, maxDocs=44421)
               0.0625 = fieldNorm(doc=1566)
         0.024670245 = weight(abstract_txt:thema in 1566) [ClassicSimilarity], result of:
           0.024670245 = score(doc=1566,freq=1.0), product of:
             0.07143548 = queryWeight, product of:
               1.2257915 = boost
               5.5256004 = idf(docFreq=480, maxDocs=44421)
               0.010546732 = queryNorm
             0.34535003 = fieldWeight in 1566, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5256004 = idf(docFreq=480, maxDocs=44421)
               0.0625 = fieldNorm(doc=1566)
         0.29439083 = weight(abstract_txt:booleschen in 1566) [ClassicSimilarity], result of:
           0.29439083 = score(doc=1566,freq=1.0), product of:
             0.50628436 = queryWeight, product of:
               5.1597285 = boost
               9.303573 = idf(docFreq=10, maxDocs=44421)
               0.010546732 = queryNorm
             0.5814733 = fieldWeight in 1566, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.303573 = idf(docFreq=10, maxDocs=44421)
               0.0625 = fieldNorm(doc=1566)
         0.3059643 = weight(abstract_txt:operatoren in 1566) [ClassicSimilarity], result of:
           0.3059643 = score(doc=1566,freq=1.0), product of:
             0.55201715 = queryWeight, product of:
               5.901963 = boost
               8.868255 = idf(docFreq=16, maxDocs=44421)
               0.010546732 = queryNorm
             0.5542659 = fieldWeight in 1566, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.868255 = idf(docFreq=16, maxDocs=44421)
               0.0625 = fieldNorm(doc=1566)
       0.16 = coord(4/25)
   

4. Stock, W.G.: Natürlichsprachige Suche - more like this! : Lexis-Nexis' Freestyle (1998) 0.10

   0.09605682 = sum of:
     0.09605682 = product of:
       1.2007103 = sum of:
         0.58878165 = weight(abstract_txt:booleschen in 3523) [ClassicSimilarity], result of:
           0.58878165 = score(doc=3523,freq=1.0), product of:
             0.50628436 = queryWeight, product of:
               5.1597285 = boost
               9.303573 = idf(docFreq=10, maxDocs=44421)
               0.010546732 = queryNorm
             1.1629466 = fieldWeight in 3523, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.303573 = idf(docFreq=10, maxDocs=44421)
               0.125 = fieldNorm(doc=3523)
         0.6119286 = weight(abstract_txt:operatoren in 3523) [ClassicSimilarity], result of:
           0.6119286 = score(doc=3523,freq=1.0), product of:
             0.55201715 = queryWeight, product of:
               5.901963 = boost
               8.868255 = idf(docFreq=16, maxDocs=44421)
               0.010546732 = queryNorm
             1.1085318 = fieldWeight in 3523, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.868255 = idf(docFreq=16, maxDocs=44421)
               0.125 = fieldNorm(doc=3523)
       0.08 = coord(2/25)
   

5. Seidler-de Alwis, R.: Informationsrecherche (2023) 0.09

   0.09206243 = sum of:
     0.09206243 = product of:
       0.76718694 = sum of:
         0.016743017 = weight(abstract_txt:kann in 1811) [ClassicSimilarity], result of:
           0.016743017 = score(doc=1811,freq=1.0), product of:
             0.047542367 = queryWeight, product of:
               4.507782 = idf(docFreq=1330, maxDocs=44421)
               0.010546732 = queryNorm
             0.35217047 = fieldWeight in 1811, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.507782 = idf(docFreq=1330, maxDocs=44421)
               0.078125 = fieldNorm(doc=1811)
         0.36798856 = weight(abstract_txt:booleschen in 1811) [ClassicSimilarity], result of:
           0.36798856 = score(doc=1811,freq=1.0), product of:
             0.50628436 = queryWeight, product of:
               5.1597285 = boost
               9.303573 = idf(docFreq=10, maxDocs=44421)
               0.010546732 = queryNorm
             0.7268416 = fieldWeight in 1811, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.303573 = idf(docFreq=10, maxDocs=44421)
               0.078125 = fieldNorm(doc=1811)
         0.38245538 = weight(abstract_txt:operatoren in 1811) [ClassicSimilarity], result of:
           0.38245538 = score(doc=1811,freq=1.0), product of:
             0.55201715 = queryWeight, product of:
               5.901963 = boost
               8.868255 = idf(docFreq=16, maxDocs=44421)
               0.010546732 = queryNorm
             0.6928324 = fieldWeight in 1811, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.868255 = idf(docFreq=16, maxDocs=44421)
               0.078125 = fieldNorm(doc=1811)
       0.12 = coord(3/25)