Today’s homework. A bigger story.
Pick a topic, meet the people behind the ideas, and try something together.
20 pioneers with prepared, book-cited stories. Explore all 315 profiles
What could you learn by keeping the same kind of notes for many days?
Explore stars & patient observation with Ibn Yunus, then try the activity below.
The legacy behind the lesson
Ibn Yunus was an astronomer who made observations over many years.
The book describes nearly thirty years of observations beginning in 977.
He observed with an astrolabe described as nearly 1.4 meters across.
“What could you learn by keeping the same kind of notes for many days?”
Keep a sky notebook
Gather: Paper, a pencil, and a grown-up.
- 1
Choose a safe place to look at the evening sky with a grown-up.
- 2
Draw the Moon if it is visible. Write the date and time beside your drawing.
- 3
Look again on another evening from the same place. Add a second drawing.
- 4
Compare what you noticed. Which questions would need more observations?
Never look directly at the Sun. Watch from the ground with a grown-up.
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