This document discusses considerations for planning student inquiry projects. It outlines objectives to discuss the range of inquiry, try classroom activities that lead to student-designed investigations, and review planning considerations. Inquiry is best described on a continuum from more teacher-centered to more student-centered approaches. Examples of simulations and demonstrations are provided to illustrate developing investigations from teacher-led activities. Key factors for planning investigations are identified as students' prior understanding, the type of activity, materials, variables, data collection, collaboration, and communicating results. Additional resources are provided.