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Get binary numbers explained with light switches
Practice: Saying who it's for. About 5 minutes.
About this exercise
In your Intro to Computer Science elective (no coding yet), you don't get how computers count in binary. Get exactly 3 numbered sentences using only Ms. Rao's light switch analogy (what on and off mean, what each switch is worth, how 5 is shown), then one line starting 'Check:' with a question to test yourself, under 80 words, plain text. Use the corrected switch values from her note.
Common mistakes when you ask AI for this
- Asking the general question. The AI explains binary with place-value tables and terms you haven't learned. Try: Say: "Use only the light switch analogy from my notes."
- Not saying how many sentences. The AI picks its own number, and it usually picks more sentences than you need. Try: Be exact: "Exactly 3 numbered sentences."
- Missing the correction. Your notes have the wrong switch values next to the fix. Try: Add: "Each switch is worth double: 1, 2, 4, 8."
- No way to test yourself. The AI explains and stops, so you never check whether it stuck. Try: Add: "End with one line starting 'Check:' with a question, no answer."
- Trusting the AI to count words. AI is bad at counting. Ask for a total and it often lands 20% over. Try: Cap each sentence: "each under 18 words."
- Forgetting where it will be read. AI formats for a screen, with bold and headings that show up as stray symbols in your notes. Try: Say: "Plain text, no bold, no headings."
What a strong prompt includes
- Names the analogy
- Says how many sentences
- Uses the correction
- Asks for a check question
- Bans new words
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