Use these targets, vocabulary, rubrics, examples, and score sheet with the instructor's approved lesson and procedure. This is an assessment companion, not a complete lesson or safety authorization.
Student lessons, data, and worked answers: Unit 01 learning pathway.
The student demonstrates the following:
Five science criteria plus separately reported integration (Page 3).
Real sky sessions with binoculars, telescope, and star charts.
The student reasons from sky geometry aloud (Page 4 anchors).
Dated, sketched entries kept across weeks, not filled in for a quiz.
You are making a decision, not adding up points. For each criterion, decide whether the work is Developing, Proficient, or Mastery — the column language tells you which. A criterion counts as mastered only when the student can both make the observation and justify the sky geometry behind it. Each student has three tokens per term; each token retries one rubric criterion. Approved accommodations, equipment failures, and approved absences are handled separately and do not consume these tokens.
Accept listed synonyms; use the distinction column to resolve near-matches.
| Canonical answer | Accepted synonyms | Common confusion / discriminator |
|---|---|---|
| The sky & star charts | ||
| Planisphere | star wheel; star chart | Set to the date and hour to show what is up right now |
| Constellation | star pattern | One of 88 official sky regions; an asterism is an informal pattern |
| Celestial sphere | dome of the sky | Apparent only; the motion is Earth’s, not the sphere’s |
| Zenith | point straight overhead | Altitude 90°; the opposite point is the nadir |
| Celestial coordinates | ||
| Altitude | angle above the horizon | 0° at the horizon, 90° at the zenith |
| Azimuth | compass bearing | Measured around from due north through east |
| Right ascension | celestial longitude; RA | Fixed to the stars, measured in hours — not altitude/azimuth |
| Declination | celestial latitude; Dec | Degrees north or south of the celestial equator |
| Motion, Moon & seasons | ||
| Diurnal motion | nightly rising and setting | Comes from Earth’s rotation, not the stars themselves moving |
| Axial tilt | 23.5° tilt; obliquity | Causes the seasons — not Earth’s distance from the Sun |
| Moon phases | waxing / waning cycle | From Sun–Earth–Moon geometry, not Earth’s shadow |
| Maria | lunar “seas” | Dark basalt plains; the bright cratered areas are highlands |
Work down the criteria one at a time. Ask the student to reason it out rather than recall — “why is it warm in July?” The cause (axial tilt, not distance) is where Proficient and Mastery separate. Naming a phase is Proficient; explaining the Sun–Earth–Moon geometry that makes it is Mastery.
| Criterion | Developing | Proficient | Mastery |
|---|---|---|---|
| Naked-eye observation & star charts | Cannot orient a star chart or find a named constellation in the real sky. | Finds bright objects but fumbles the planisphere or loses track of direction. | Sets a planisphere for the date and hour, then locates constellations, bright stars, and visible planets by eye. |
| The celestial sphere & coordinates | Cannot locate an object in a defined coordinate system. | Uses coordinates but confuses their reference directions or rates. | Locates a target with altitude/azimuth, explains equatorial coordinates, and interprets a defined-coordinate track with units. |
| Diurnal & annual motion | Thinks the stars are fixed and that seasons come from Earth's distance to the Sun. | Describes nightly rising and setting but muddles why constellations change with the seasons. | Explains diurnal motion from Earth's rotation and the seasonal march of constellations from its orbit — and traces the seasons to axial tilt, not distance. |
| Moon phases & lunar features | Believes Earth's shadow causes the phases. | Names the phases in order but cannot draw the Sun–Earth–Moon geometry that makes them. | Predicts the phase from the Sun–Earth–Moon geometry and identifies maria, highlands, and major craters on the disk. |
| Observation technique & the journal | Skips setup, uses white light at the eyepiece, or leaves the journal blank. | Observes with binoculars or a telescope but keeps thin, undated notes. | Works cleanly under a red flashlight, uses binoculars, telescope, and sky-mapping apps well, and keeps dated, sketched journal entries across weeks. |
| Integration (cross-domain) | Makes no supported connection between the source and the science. | Uses the source but needs help connecting evidence, writing, or limitations to the science. | Independently connects History, Reading, and Writing using a cited source, appropriate evidence, a limitation, and a scientific explanation. |
Read these before you grade. They show what Mastery and Developing actually sound like, plus the edge cases where you should coach rather than decide on the spot.
Student: ______________________________________ Date: _______________ Guide: _________________________
| # | Criterion | Decision | Notes |
|---|---|---|---|
| 1 | Naked-eye observation & star charts | Dev / Prof / Mast | |
| 2 | The celestial sphere & coordinates | Dev / Prof / Mast | |
| 3 | Diurnal & annual motion | Dev / Prof / Mast | |
| 4 | Moon phases & lunar features | Dev / Prof / Mast | |
| 5 | Observation technique & the journal | Dev / Prof / Mast | |
| 6 | Integration (cross-domain) | Dev / Prof / Mast |
☐ No ☐ Yes — for criterion: __________
Tokens left this term after this session (choose one): ☐ 3 ☐ 2 ☐ 1 ☐ None left
Dev = Developing · Prof = Proficient · Mast = Mastery · Unsure between two levels? Circle the lower one and note what a re-do would need.