Heart Words: High-Frequency Word Mapping (K–2) | Science of Reading

"Just memorize it" doesn't work — because that's not how the brain stores words.

High-frequency words like "said," "was," and "they" get taught with flashcards and drilled with "just memorize it," and by Friday they're gone again. Orthographic mapping is how the brain actually locks a word into long-term memory: not as a picture, but as sounds mapped to spellings. This set gives kids the strategy instead of one more thing to memorize by brute force.

One 5-step routine, every word

Sound-box mapping — one box per sound, not per letter — with the irregular grapheme hearted so kids see that most of the word is decodable.

Say the sounds

Push a chip per box

Write the grapheme in each box

Write the whole word

Use it in a sentence

What's inside (one no-prep file)

≈100 high-frequency word mapping mats across four sets, following a real K–2 progression (the earliest words first: the, a, is, was, said, you, are, they…)
Sound-box mapping (one box per sound, not per letter) — so the child segments by phoneme, the way mapping actually works
"Heart the tricky part" — the irregular grapheme gets a heart, showing the child that most of the word is decodable and only the heart part is "by heart"
The full five-step routine on every mat: say the sounds, push a chip per box, write the grapheme in each box, write the whole word, use it in a sentence frame
A regular-vs-heart breakdown per word, explicitly labeling which letters are sounded out and which are the temporarily-irregular heart part
A decodable sentence frame for each word — pairs directly with the Decodable Passages set
Teacher script + small-group rotation + partner check — zero-training routines anyone can run
A per-student HFW mastery checklist that slides into the Student Data Binder
Editable word-mat template so you can add your own program's word list
Google Slides digital version + full black & white ink-saver printing

Where it sits in your intervention block

The binder builds the phonics skill; the decodable passages apply it in connected text; these mats handle the tricky high-frequency words that don't sound out cleanly — the third leg of a Science-of-Reading intervention. Because every word is mapped by sound and the irregular part is made explicit, kids get a strategy for tricky words instead of one more thing to memorize.

$5 as a standalone add-on

Priced as the +$5 companion completing the intervention ladder. Get all three rungs together in the Science of Reading Intervention Bundle — $22 (save $5 / ~19% vs. buying separately).

Building now — get on the list, free.

Heart Words: High-Frequency Word Orthographic Mapping publishes ~late July. Get the free 5-Minute Phonics Intervention Starter Pack today — a real decodable passage, letter-sound cards, and a data sheet you can run this week — and we'll email you the moment this add-on goes live.

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Give the tricky words a strategy, not a flashcard pile.

Sound-box mapping. Heart the tricky part. Map, spell, write, use. ~100 words across four sets. Building now — get on the list and start free with the Starter Pack above.

Get the Heart Words Mapping Mats → $5 add-on · K–2 · Print & Google Slides · or start free with the Starter Pack above

Heart Words — the strategy for the words that don't sound out cleanly.