Abstract (eng)
This thesis focuses on whether an introduction of Inquiry Based Learning can improve the knowledge concerning the subject “acids and bases” of students of 9th and 10th grade.
The thesis starts with a theoretical part that contains four chapters: The first chapter deals with Inquiry Based Learning (IBL) as student-centred approach to learning and teaching (Blanchard et al, 2010). The second chapter gives a short overview of concepts to acids and bases. The third and fourth chapter explain the use of Concept-Maps as an analytical tool in science lessons and illustrate some parameters of Concept-Maps.
IBL is seen as student-centred approach. “Inquiry” refers to activities done by students that mimic some of the activities carried out by scientists. In the school context, the inquiry process can be divided into four different levels (0-3) which refer to different levels of openness. Level 0 activities are less open than those of level 3. The more open activities are, students make the more decisions. Even if activities take part at a more open level, teacher him- or herself is always included in the inquiry-process as a scaffolder.
Concept-Maps can be understood as a graphical representation. Central concepts of a topic are linked to each other. In marked contrast to mind-maps, links can contain linking-words or linking-phrases. In this way a hierarchical order of concepts around a central topic is produced, which helps students to better structure their knowledge.
The participants were students of two different schools: one city-based BHS and one AHS based at a more rural area. To manifest the changes of students’ knowledge during the research process, they constructed Concept-Maps – one Pre-Map in advance and one Post-Map afterwards. The analysis focuses on comparing and discussing the maps.
To sum up, Concept-Mapping proved not to be an optimal method for reconstructing the students’ learning. Above all, about 50% of the students showed problems in constructing the Concept-Maps. However, with those students who could manage to construct a comparable Pre- and Post-Map there could be documented some progress in learning about acids and bases for each of them.