What method would best help second-grade students understand apparent movement across the sky?

The method of observing and recording shadow lengths at different times is particularly effective for second-grade students to understand apparent movement across the sky. This hands-on, experiential approach allows students to engage directly with the concept being taught. By observing how shadows change throughout the day, they can physically see the relationship between the position of the sun and the resulting shadow lengths.

This active involvement in a real-world observation provides a deeper, more meaningful understanding than passive methods, such as watching a video or reading a book. It encourages students to make connections between their observations and the scientific principles behind daylight and shadow formation. This process of inquiry and data collection fosters critical thinking and helps students grasp the dynamics of solar movement more effectively.