Bring fractions and ratios to life with real-world STEM learning! In this engaging hands-on lab, students use an Arduino Uno and a photoresistor (LDR) to measure light levels in different classroom locations. They convert sensor readings into percentages, write fractions, simplify ratios, and analyze real data. Perfect for Grades 6–7 math, STEM, makerspaces, and middle school enrichment. ✔ Hands-on STEM + Math integration ✔ Real sensor data collection ✔ Fractions, ratios, percentages ✔ Pri