Sound Boxes: A Two-Week Plan for Blending Sounds
September 15, 2026 · 4 min read
How to use sound boxes (Elkonin boxes) at the kitchen table — which words to start with, how to correct errors, and when to drop the boxes.
What sound boxes do
Sound boxes give each sound in a word its own square. Your child slides a finger or a coin into each box while saying the sound, then blends the sounds into the word. The boxes make an invisible skill — hearing the order of sounds — visible and touchable.
Week one: three-sound words
- Pick five words with three clear sounds, such as map, sun, fit, jog, and bed.
- Say the word slowly together, then have your child push a coin into a box for each sound: /m/ /a/ /p/.
- Slide a finger under all three boxes to blend: map.
- Finish by writing one letter or letter team in each box.
Week two: stretch to four sounds
Move to words with blends like stop, frog, and clap. The blend gets two boxes — one for each letter — because it is two sounds said quickly. If your child pushes a whole blend into one box, say the word slowly again and let them hear it split.
When your child boxes four out of five words correctly two sessions in a row, start fading the boxes on easy words. The boxes are training wheels, not a permanent tool.
Handling mistakes
Never say a wrong answer is 'close.' Re-say the word slowly, stretch the missed sound, and let your child fix it themselves. Self-correction is where the learning happens.
Try this tonight
- One box per sound — blends get two boxes.
- Ten minutes, five to eight words, then stop.
- Fade the boxes once accuracy is solid.