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Figure 3. PBL environment system architecture
Under these preparations, we did the following experiments to evaluate PBL
environment in the 3D virtual world. We collected two examinees respectively
from Japanese, from German (who are familiar with both the mother tongue
and English), and from Malay students, and divided them into two groups so
that each group should contain speakers of respective languages. We refer to 90
minutes as one period, which is divided into two parts, a 30 minutes lecture and
the succeeding 60 minutes discussion. In the lecture, a professor taught basic
knowledge about a subject using chat function, and then students discussed on
the subject using multilingual chat for 60 minutes. We prepared problems to
ask basic knowledge of chemistry for undergraduate students as a PBL subject.
The combination of theme and language is shown in Table 2.
Table 2. Environment of Evaluation Experiment
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