Observe and record the Moon's appearance on multiple nights this week, beginning a pattern investigation.
The Moon does not always look the same. Some nights it looks like a full, bright circle, other nights just a sliver, and some nights it can barely be seen at all. This week, you become a Moon-watcher and record what you see each night.
Keeping a nightly record, night after night, is exactly how real scientists find patterns -- you cannot see a pattern from just one night's look.
Mastery looks like: They record the Moon's appearance on at least several nights this week and can describe how it changed across those nights.
Common stumbles: Skipping nights and trying to remember later instead of recording in the moment; expecting the Moon to look identical every single night.