Which question would best help evaluate the rigor of a social studies unit?

The option that best evaluates the rigor of a social studies unit is the one focused on inquiry-based activities that require students to form their own answers. This approach encourages higher-order thinking, as it pushes students to engage critically with the material, analyze information, and create their own understanding of historical or social concepts. Inquiry-based learning fosters independence and creativity, allowing students to investigate, ask questions, and develop conclusions based on their research and reasoning.

This method contrasts with other potential elements of the unit. While projects and tests can provide valuable insights into student learning and comprehension, they may not necessarily stimulate deep critical thinking in the same way that inquiry-based activities do. Project work can vary widely in depth and rigor, and assessments might focus more on rote memorization rather than conceptual understanding. Textbooks can serve as useful resources, but they may not promote the active engagement and critical thinking that inquiry-based activities demand. Ultimately, the emphasis on inquiry in the correct choice is what elevates the rigor of a social studies unit.