A comparison of two flash-card methods for improving sight-word reading.

Kupzyk et al. (2011) compared two flash-card methods for teaching sight words. Four students took part in a reversal design. Each child tried both standard incremental rehearsal and a new version called Strategic Incremental Rehearsal (SIR).

Both methods used a growing pile of cards. SIR added three twists: more practice on unknown words, the child chose when to move a card, and quick prompts when stuck.

Every child read more words correctly with SIR than with the old method. The gain showed up right away and lasted two weeks without extra practice.

The authors call the finding 'positive' but give no numbers.

Lewis et al. (2025) kept the SIR steps but swapped flash-cards for a single word list. Kids still learned fast and kept the words. The list cuts prep time, so you can use SIR even when cards are missing.

Coleman et al. (2025) let fourth-grade peers run the same SIR flash-card game for second graders. The younger kids learned their words and said the sessions were fun. Together these studies show SIR works with less prep and with new teachers.

Hathaway et al. (2021) moved SIR down a grade and switched the content from sight words to letter names. Two kindergarteners mastered more letters after SIR was added. The method travels across skills and ages.

If you teach reading, you already have flash-cards. Add the three SIR steps: let the child see the unknown word three times in a row, let the child decide when a card leaves the pile, and give a quick prompt on errors. You keep the same cards, but the child learns faster and keeps the words longer. Try it next session with one struggling reader and track correct responses across five days.