Astronomy SEEd Strand 1

The study of astronomy started as curious people observed and tried to explain phenomena observed on Earth by looking up at the sky. Models help to investigate and explain these phenomena using evidence for our current understanding. Space Exploration helps us better understand our planet and cause leaps in technology, culture, knowledge, and inspiration.

ASTR.1.1

Earth, Moon and Sun

Unit Overview
Unit Proficiency scale
Teacher resources
Launching Phenomenon
A- The Spinning Earth
B- Seasons and Tilt
C- The moon Phases
D- Eclipses and tides
Extension activity- Time and the Calendar (Partial)
Assessments / keys *
Additional websites and resources

Extra Resources and Websites:

Openstax Astronomy 2e

ASTR.1.2-3

History of Astronomy and the Celestial Sphere

Unit Overview
Unit proficiency Scale
Teacher Resources/assessments
Launching Phenomenon
A- Prehistoric Astronomy and Structures
B- The Celestial Sphere
C- Constellations and the Zodiac
D- Heliocentrism and epicycles
Assessments / keys*

ASTR.1.4
Light and the EM Spectra

Coming Feb 2026

ASTR.1.5

Space Exploration

Unit preview
Coming Fall 2025

* For access to all teacher assessments and keys:

email celia@starstuffclassroom.net or complete this form: