Implementing inquiry-based modules within a course can be effective and enable instructor experimentation, without completely transforming an entire course. For instructors new to inquiry-based learning (IBL), we state hallmarks of the practice and point out the merits of strong IBL communities. An inquiry-based approach may alleviate some current common issues in Calculus I. We present two activities and evidence of their effectiveness and adaptability, and describe their POGIL style of guided inquiry learning that raises awareness of the learning process. We share the experience of a "traditionally-oriented" faculty member transitioning to a more student-centered pedagogy, reflecting on advantages of using a combination of pedagogical styles.