My 6th-grade daughter made the exact sam
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My 6th-grade daughter made the exact same error on three problems on her math quiz:
1. Convert 6% to a decimal -> she wrote 0.6 (instead of 0.06)
2. Convert 4% to a decimal -> she wrote 0.4 (instead of 0.04)
3. Convert 7% to a decimal -> she wrote 0.7 (instead of 0.07)
She treats single-digit percentages as tenths instead of hundredths (confusing 6% with 60%).
Can you cluster these three missed problems into a single 5-line cause card (prompt, wrong, right, tag, cause) for our mistake notebook, and give one parallel problem for her to test tonight without lecturing on general math theory?
Answer
One card written — the three percent-to-decimal misses (6%, 4%, 7%) are clustered together as a single cause.
**Card contents:**
- **Prompt:** Convert 6% to a decimal (representative of 3 same-cause misses: also 4%→0.4 and 7%→0.7)
- **Wrong move:** 0.6
- **ight move:** 0.06
- **Tag:** percent-decimal
- **Cause:** treats single-digit percentages as tenths instead of hundredths (confuses 6% with 60%)
Card id `b2503e1d2201e19c`. First revisit due **2026-09-18** (tomorrow), then 3 days → 7 days → 14 days → 30 days if she keeps passing.
**Parallel problem for tonight:** *"Convert 3% to a decimal."* Have her write the answer from memory before flipping the card. The answer (0.03) is stored on the card's right line, so you don't need to feed it to her.
Side note — 13 cards from earlier quizzes are still in today's due pile (fractions, borrowing across zero, distributing a negative, order of operations, etc.). If you'd like to clear tonight's stack first, say the word and I'll read the prompts one at a time for self-test, then reveal.