Connect science to everyday life with “What Blocks Light?”—an engaging, NGSS-aligned lesson designed for first grade! In this lesson, students systematically test a variety of materials with flashlights to see which are transparent, translucent, or opaque. Students record their results in a data table, sort and discuss their findings, and connect these properties to real-world uses. What’s Included:Step-by-step, easy-to-follow lesson planStudent-friendly objective and “I Can” statementComplete m