Problem-based learning (PBL) involves students solving a problem with multiple solutions over time, like scientists in real-world contexts. This fourth-grade PBL unit had students become part of an endeavor to help their state of Virginia become energy independent. It conceptualized energy independence as becoming self-sufficient for energy…

In this problem-based learning activity (PBL), students embark on a science trek to answer the question "Where is the science in my neighborhood?" The project serves as an excellent review of science curriculum in anticipation of Virginia's year-end standardized test--the Standards of Learning (SOL). This has proved to be an interesting…