Imagine yourself in a kindergarten classroom. Amidst bright walls and happy chatter, students are bustling about, moving from station to station to explore different concepts related to shadows and light. At one station, a little boy named David is holding a stick up to a lightbulb to form shadows, and using Unifix Cubes to measure the shadow’s length at different angles. He holds the lamp close to the ground: The shadow lengthens. He holds the lamp higher off the ground: The shadow shortens.
