{"id":"study-moon-phases-lamp-demo","audience":"college","category":"explaining","technique":"audience","track":"study","title":"Get moon phases explained with the lamp-and-ball demo","free":false,"task":"In your intro Astronomy lab, you still think moon phases come from Earth's shadow. Get exactly 3 numbered sentences using only the lamp-and-ball demo (what's always lit, why we see different amounts, what a new moon is), then one line starting 'Check:' with a question to test yourself, under 80 words, plain text. Correct the shadow idea without using the words 'eclipse' or 'umbra'.","materialLabel":"Your lab notes (attached to your prompt automatically)","material":"ASTR 1010 - Lab 3: Moon phases (TA: Gabriel)\n\nDEMO: a lamp in the middle of the room = the Sun. You hold a foam ball at arm's length = the Moon. Your head = Earth.\n\nWhat we saw as we turned in a circle:\n- The half of the ball facing the lamp was ALWAYS lit, no matter where we stood.\n- As the ball moved around our head, we saw different amounts of the lit half.\n- Ball between us and the lamp: we saw the dark side = new moon.\n- Ball on the far side (lamp behind us, not blocking): we saw the whole lit half = full moon.\n\nMY OLD IDEA: \"Phases happen because Earth's shadow covers part of the Moon.\"\n** Gabriel: \"That's the most common mistake! Earth's shadow only falls on the Moon during an eclipse, which is rare. Phases are about how much of the lit half we can SEE.\" **\n\nLab question: \"Explain phases using the demo. Address the shadow misconception.\"\nWords to avoid in the answer (Gabriel): eclipse, umbra (lab is about phases, not eclipses).\n\nLab report due Tuesday.","rules":[{"type":"numberedItems","count":3},{"type":"maxWords","max":80},{"type":"plainText"}],"mistakes":[{"title":"Asking the general question","why":"The AI gives a textbook diagram explanation, not the demo you did.","fix":"Say: \"Use only the lamp-and-ball demo from my lab.\"","checks":["r0"]},{"title":"Not saying how many sentences","why":"The AI picks its own number, and it usually picks more sentences than you need.","fix":"Be exact: \"Exactly 3 numbered sentences.\"","checks":["numberedItems"]},{"title":"Not addressing the misconception","why":"The AI may explain phases but never say the shadow idea is wrong, or bring up eclipses.","fix":"Add: \"Say it's not Earth's shadow, without using eclipse or umbra.\"","checks":["r1"]},{"title":"No way to test yourself","why":"The AI explains and stops, so you never check whether it stuck.","fix":"Add: \"End with one line starting 'Check:' with a question, no answer.\"","checks":["r2"]},{"title":"Trusting the AI to count words","why":"AI is bad at counting. Ask for a total and it often lands 20% over.","fix":"Cap each sentence: \"each under 18 words.\"","checks":["maxWords"]},{"title":"Forgetting where it will be read","why":"AI formats for a screen, with bold and headings that show up as stray symbols in your lab report.","fix":"Say: \"Plain text, no bold, no headings.\"","checks":["plainText"]}],"promptHints":[{"label":"Names the demo","patterns":["lamp","ball","demo"]},{"label":"Says how many sentences","patterns":["\\b(3|three)\\b.{0,25}sentence"]},{"label":"Addresses the shadow idea","patterns":["shadow","misconception"]},{"label":"Asks for a check question","patterns":["check:","check question","test (me|myself)","quiz me"]},{"label":"Bans the eclipse words","patterns":["eclipse","umbra"]}],"hint":"Point the AI to your lab demo, give it the three ideas, tell it to correct the shadow idea without eclipse words, and ask for a question to test yourself.","rubricLabels":["Uses only the lamp-and-ball demo: the half facing the lamp (Sun) is always lit, we see different amounts of that lit half as it circles us, and a new moon is when the ball is between us and the lamp","Makes clear phases are not caused by Earth's shadow, without using the words eclipse or umbra","Ends with one line starting 'Check:' that asks a question about the demo, and does not answer it"]}