Describe how the sun's apparent position changes across the day using shadows and light, and state the sun-safety rule.
The sun seems to move across the sky during the day. It appears low in the morning, gets higher by midday, and appears low again, on the opposite side, by evening. You can tell this from shadows and light without ever looking straight at the sun.
It is never safe to look directly at the sun, even for a moment, because it can hurt your eyes. Always use shadows, or light coming through a window, to notice the sun's position instead.
Mastery looks like: They describe the sun's apparent path using shadows or window light as evidence, and correctly state the sun-safety rule without prompting.
Common stumbles: Trying to look directly at the sun to check its position; confusing which side of the house gets morning light versus evening light.