<![CDATA[Biology learning must utilize technology and direct students to have problem solving skills, so that learning innovations are blended-problem based learning. This study aims to look at the effectiveness of blended-problem based learning on problem solving, when compared to learning that applies the scientific approach (5M). This study categorized as quasi-experimental research, using the design of the pretest-posttest control group. The independent t-test obtained the sig value. 0.00 <0.05, so that it can be interpreted that the posttest value of the executive class and control is significantly different. N-Gain score testing was obtained from the 0.70 high category experimental class, while 0.298 for the low category control class. Based on these data, blended-problem based learning can be said to be effective against solving ecological chapter problems.]]>
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