Application of PBL Using Laboratory and Mathematical Thinking Ability to Learning Outcomes of General Chemistry Course

The abundance of chemical concepts and general chemistry lessons that tend to be monotonous and have not yet
considered the ability of mathematical thinking to cause problems in learning that resulted in low student learning
outcomes. The purpose of this research is to know the influence of learning model and mathematical thinking
ability toward General Chemistry study result, also interaction between learning model through laboratory usage
and mathematical thinking ability. This research is an experimental research using PBL and DI model. The
learning result data is obtained from general chemistry study result test and mathematical thinking ability data is
obtained through the test of mathematical thinking ability which has all been validated. The data analysis
technique used two way analysis of variance (ANOVA). The result of the research shows that there is a significant
effect of the learning model on the students ‘learning outcomes in the General Chemistry course and there is
interaction between the learning model using the laboratory with the ability to think mathematically on the
students’ General Chemistry students learning outcomes. This research concludes that the PBL model using
laboratories is well used in general chemistry learning, and preferably in teaching general chemistry courses, the
lecturer considers students’ mathematical thinking skills.