{"id":"study2-inflation-ninth-grader-explainer","audience":"high-school","category":"explaining","technique":"audience","track":"study","level":"intermediate","title":"Explain inflation to a 9th grader in four sentences","free":false,"task":"Your cousin is a 9th grader and asked what inflation is. Get an explanation of at most 4 sentences, plain text, that uses the lemonade stand example from your notes, uses no word she hasn't met, and ends with one question she can answer to check herself.","materialLabel":"Your notes (attached to your prompt automatically)","material":"ECON UNIT 3 - Notes\n\nTextbook: \"Inflation is the sustained increase in the general price level of goods and services in an economy over a period of time, reducing the purchasing power of a currency.\"\n\nClass example (lemonade stand): In 2020 a cup of lemonade cost $1. In 2024 the same cup costs $2. A kid with $10 used to buy 10 cups. Now the same $10 buys 5 cups.\n\nMy note: \"inflation = when prices go up.\"\n** Ms. Rivera: \"Not quite. One price going up is not inflation. It's prices rising across many things, over time.\" **\n\nWords we have NOT covered yet: CPI, monetary policy, deflation, purchasing power.\n\nQuiz format: short explanations in your own words.","rules":[{"type":"maxSentences","max":4},{"type":"plainText"},{"type":"maxWords","max":85}],"mistakes":[{"title":"Using the textbook wording","why":"The AI repeats the dense definition, which a 9th grader can't use.","fix":"Say: \"For a 9th grader, no words she hasn't met.\"","checks":["r2"]},{"title":"Missing the correction","why":"Your own note says any price rise is inflation.","fix":"Add: \"It means prices rising across many things, per Ms. Rivera.\"","checks":["r1"]},{"title":"No self-check question","why":"The AI ends with a friendly summary instead.","fix":"Say: \"End with one question she can answer.\"","checks":["r0"]},{"title":"No sentence limit","why":"The AI keeps going until the idea feels complete.","fix":"Say: \"At most 4 sentences.\"","checks":["maxSentences"]},{"title":"Forgetting where it's going","why":"AI formats for a screen, with bold and headings that show up as stray symbols.","fix":"Say: \"Plain text, no bold, no headings.\"","checks":["plainText"]},{"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 part: \"each line under 12 words.\"","checks":["maxWords"]}],"promptHints":[{"label":"Names the reader","patterns":["9th.?grad","ninth","cousin"]},{"label":"Sets the sentence limit","patterns":["(at most|max|no more than|under)\\s*(4|four)\\s*sentence","\\b(4|four)\\b.{0,10}sentence"]},{"label":"Uses the lemonade example","patterns":["lemonade"]},{"label":"Ends with a question","patterns":["end.{0,20}question","question.{0,20}(end|last)"]},{"label":"Uses the correction","patterns":["many (things|goods|prices)","not (just )?one","rivera"]}],"hint":"Explaining down takes care. Name the reader, cap the sentences, point to the example, and say how to end.","mission":"Explain inflation so a 9th grader gets it.","musts":["At most 4 sentences","Lemonade example","Ends with a question"],"rubricLabels":["Is at most 4 sentences, and the last sentence is a question","Says inflation means prices rising across many things over time (not just one price), so the same money buys less","Uses the lemonade example with $1 and $2 or 10 cups and 5 cups, and uses none of the words CPI, monetary policy, deflation or purchasing power"]}