This research was implementation of physics’ developmental learning through top down processes bassed on scaffolding to practice critical thinking skills. The results were described by physics achievement and critical thinking skills achieved by students of class XI after attending the learning process. This study used four-D model of development which consist of define, design, develop, and disseminate. The data of physics achievement and critical thinking skills acquired through the provision of tests. From the results obtained information that the students physics achievement by gain score category on average washigher while the critical thinking skills test results showed that only 3% of students werein the skilled category, while the average of student’s critical thinking skills was from limited proficiency to some proficiency category.Pearson correlation showed significant effect of physics achievement to critical thinking skills where 22,37% critical thinking skills wereexplained by physics achievement
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