Our goal in building science instruction from a phenomenon is to literally build instruction on it. We want to use our phenomena to spark the questions that our students will answer over the course of the unit. We want to present the phenomenon without the answers, without the explanations, without the content. We want to present it as it is — something that happened — and support our students in developing the questions that will help explain it.
Science learning for the 21st century is a student-driven experience, and it starts with phenomena.