Adopting a project-based learning curriculum in schools will significantly improve students' critical thinking skills. Traditional lecture-based instruction primarily encourages rote memorization, whereas project-based learning requires students to analyze problems, synthesize information from various sources, and evaluate solutions independently, fostering deeper engagement and cognitive development.
Correct: C
The argument asserts that project-based learning (PBL) improves critical thinking skills because it 'requires students to analyze problems, synthesize information... and evaluate solutions independently.' This causal link relies on the assumption that these specific activities *are* the primary means by which critical thinking skills are developed. Choice C directly articulates this assumption: if students *do not* learn critical thinking skills primarily through such activities, then the mechanism by which PBL is said to improve these skills would be fundamentally flawed. Choices A (teacher training) and D (engagement correlation) are factors influencing the *success* or *mechanism* of PBL, but not the foundational logical link. Choice B is a value judgment, not an assumption of the argument's logic.