What Are Heart Words? A Teacher’s Guide to This Game-Changing Approach

As a literacy specialist who works with struggling readers every day, one of the most common questions I hear is “What are heart words?” It’s a great question and one that’s changing how we teach high-frequency words in our classrooms.

Today, I’m going to share everything you need to know about heart words, drawing from both my intervention experience and the latest research.

What Are Heart Words? Understanding the Basics

When teachers ask me what are heart words, I start by explaining that they’re not just another term for sight words (though I totally get why there’s confusion!). Heart words are specifically those high-frequency words that contain irregular spelling patterns – the ones that make our young readers furrow their brows when regular decoding strategies don’t quite work.

Many teachers wonder how heart words compare to regular high-frequency words. The key difference is that heart words have at least one tricky part that doesn’t follow typical sound-spelling patterns. Take the word “was” as an example. While the ‘w’ behaves as expected, the ‘a’ says /ŭ/ and the ‘s’ says /z/ – patterns that can throw our budding readers for a loop.

Why This New Approach to Heart Words Matters

I remember the days of asking students to memorize entire sight words as single units – and I bet you do too! But understanding what heart words are and how they work has completely changed my intervention approach.

As Maryanne Wolf points out in “Proust and the Squid,” there are actually fewer irregular words than we might think, especially once we understand English spelling patterns more deeply.

Here’s something that blew my mind when I first learned it (and still amazes my teachers): the letter ‘s’ represents the /z/ sound 43% of the time in English! Once students learn patterns like this, many heart words become decodable. This is why I’m so passionate about teaching phonics strategically – we’re not just helping students memorize; we’re helping them understand our language’s fascinating patterns.

heart words

Teaching Heart Words: A Step-by-Step Guide

After years of supporting teachers with heart words instruction, I’ve refined these steps to make them classroom-friendly and effective. Here’s what works in real classrooms:

Start With the Whole Word
Begin by saying the word clearly and having students repeat it. Make it fun! I love watching students’ eyes light up when we turn this into a game. Just last week, one of my struggling readers started dancing in his chair when he figured out why we put a heart over the ‘a’ in “what” – those moments make everything worth it!

Break It Down
Guide students in segmenting the word into individual sounds. For “has,” we break it into /h/ /ă/ /z/. I often use sound boxes or hand motions to make this concrete – whatever works for your kids! One teacher I work with uses different colored markers for regular and irregular sounds, and her students are thriving with this visual support.

Analyze Each Sound-Spelling Connection
This is where understanding what are heart words really comes into play. Take “has” as an example:

  • First sound: /h/ → spelled with ‘h’ (regular!)
  • Middle sound: /ă/ → spelled with ‘a’ (regular!)
  • Final sound: /z/ → spelled with ‘s’ (irregular – time for that heart!)

Make It Stick
Have students read the word, spell it, and say it again. This multiple-exposure approach works wonders. I love having students “be the teacher” and explain why we put hearts on certain parts. The confidence boost when they can explain it to others is incredible!

Tips from the Intervention Table

After countless hours working with struggling readers, here’s what I’ve found makes heart words instruction really stick:

  • Start with high-frequency words that have just one irregular part
  • Use consistent heart markings to highlight irregular patterns
  • Revisit words regularly – I like to do quick reviews during transition times
  • Celebrate when students spot heart word patterns in their reading
  • Create a heart word wall that grows with your students’ learning
  • Incorporate movement and multisensory activities in your practice
  • Keep a running list of mastered heart words to show progress

One of my favorite success stories comes from a third-grade teacher who started using heart words with her struggling readers. Within weeks, she noticed her students becoming more confident in approaching unfamiliar words because they understood that even “tricky” words follow patterns – they just needed to find them!

The Science Behind the Success

Recent research (Colenbrander et al., 2022) confirms what I’ve seen at my intervention table: students learn best when they understand the why behind irregular spellings. When we teach heart words this way, we’re building on students’ phonics knowledge while acknowledging that some parts need special attention.

Moving Forward with Heart Words

Remember, the goal isn’t to keep marking hearts forever. As students learn more advanced patterns, many heart words naturally become regular words they can decode with confidence. For example, once students are taught that the letter ‘s’ can also make the /z/ sound, ‘has’ is no longer a heart word – it’s now decodable! I’ve watched this progression happen countless times, and it never gets old!

You’re doing important work in your classroom, and understanding what heart words are is just one more tool in your teaching toolkit. Keep celebrating those small wins, and remember – you’re not just teaching words, you’re helping students unlock the mysteries of our language.

Your Next Steps

Start small! Pick one or two high-frequency words that your students are struggling with and try this approach. Notice which parts are regular and which parts need hearts. Watch how your students respond to understanding why these words are tricky rather than just being told “this is a sight word.”

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Additional Resources

Before you go, I wanted to share these treasured titles from my own literacy toolkit—the ones that have guided me through countless ‘what do I try next?’ moments in my teaching journey.

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High frequency words
Science of Reading

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