OO Has Two Sounds — Moon and Book
Here is the honest answer most phonics sites avoid: there is no rule. Moon and book are spelled the same and sound different, and no pattern predicts which is which.
There is no rule here
OO usually howls a long \u{201C}oooo\u{201D} like the moon… a small book-family says a quick \u{201C}u\u{201D}!
The same two letters make two sounds!
• Most oo words stretch long like a ghost — moon, zoo, food.
• A small family says a short quick sound — book, look, good.
Tip: oo before k almost always sounds like book!
28 words, sorted — tap any word to hear it
What’s in the app
The rest of the path lives in Kids English Learning
This page is the reference; the app is where a child does the reading — levels 1–3 are free to try.
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- ⭐Progress that sticksA journey map, 84 stars and a level-by-level path. Stars never go down.
- 🪜Four capstone challengesReading Ladder, Word Detective, Super Quiz and Compare & Choose — proving a child can decode words they have never seen.
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- 📊A parent reportWhat your child practised, where they are stuck, and what to do about it.
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