{"id":"dat-par-swim-lessons-cost-per-class","audience":"parents","category":"decisions","technique":"context","title":"Compare swim programs on cost per class you'll actually attend","free":false,"task":"You'll miss 2 weeks of either swim program for a family trip. Program B lets you book make-up classes for missed ones; Program A doesn't. Write exactly 2 numbered lines, each as Program: $price ÷ classes you'll actually attend = $X per class, then one unnumbered last line: Sign up: A or B. Plain text, under 60 words.","materialLabel":"Program flyers (attached to your prompt automatically)","material":"WINTER SWIM LESSONS - for Leo (7)\n\nProgram A - Northside Rec Center\n- 10 weeks, once a week (Saturdays 9 am)\n- $180 for the session\n- \"No make-ups or refunds for missed classes.\"\n\nProgram B - AquaKids Swim School\n- 8 weeks, twice a week (Tue/Thu 5 pm)\n- $320 for the session\n- \"Missed a class? Book a make-up in any open slot.\"\n\nNotes:\n- Family trip to Grandma's is the week of Feb 16 and Feb 23.\n- Leo's friend Max does Program A.\n- AquaKids pool is warmer (Leo complains about cold water).\n- Northside is 5 minutes away; AquaKids is 15.\n- Both have instructors certified by the same organization.","rules":[{"type":"numberedItems","count":2},{"type":"plainText"},{"type":"maxWords","max":60}],"mistakes":[{"title":"Not mentioning the trip","why":"The AI divides by all scheduled classes, so A looks cheaper at $18.","fix":"Add: \"We'll miss 2 weeks.\"","checks":["r0","r2"]},{"title":"Ignoring make-ups","why":"The AI takes classes off B too, though you can make them up.","fix":"Add: \"B allows make-ups; A doesn't.\"","checks":["r1"]},{"title":"Not asking to see the work","why":"Per-class math is easy to fumble.","fix":"Add a line to copy: \"1. A: $180 ÷ 8 = $22.50 per class\"","checks":["numberedItems","r0"]},{"title":"Trusting the AI to count words","why":"AI is bad at counting. Ask for a total word limit and it often lands over it.","fix":"Cap each line: \"each line under 12 words.\"","checks":["maxWords"]},{"title":"Forgetting where it goes","why":"AI loves markdown tables and bold, which show up as clutter in a family group text.","fix":"Add: \"Plain text, no bold, headings or tables.\"","checks":["plainText"]}],"promptHints":[{"label":"Mentions the missed weeks","patterns":["miss","trip","2 weeks"]},{"label":"Mentions make-ups","patterns":["make.?up"]},{"label":"Asks to show the math","patterns":["show (the |your )?(math|work)","x \\$|\\bx\\b.{0,10}=","calculation","step"]},{"label":"Sets a word limit","patterns":["\\d+\\s*words","word (limit|count)","under \\d+"]},{"label":"Asks for plain text","patterns":["plain","no bold","no markdown","no formatting","no (headings|tables)"]}],"hint":"Missed classes change the real price per lesson. Tell the AI about the trip and the make-up rules.","rubricLabels":["Program A is $180 ÷ 8 classes attended (10 − 2 missed) = $22.50 per class","Program B is $320 ÷ 16 classes (2 a week x 8, with make-ups) = $20 per class","The last line picks Program B, with nothing before the first numbered line"]}