ABA Fundamentals

Teaching identity matching of braille characters to beginning braille readers

Toussaint et al. (2017) · Journal of Applied Behavior Analysis 2017
★ The Verdict

Stimulus fading within identity-matching drills can quickly teach braille character recognition to beginning braille readers.

✓ Read this if BCBAs or TVIs working with early braille readers in school or clinic settings.
✗ Skip if Practitioners serving only sighted students or older braille users who already know the alphabet.

01Research in Context

01

What this study did

Toussaint et al. (2017) worked with three children who were blind. The kids were just starting to read braille.

The team used identity-matching drills. A child felt one braille cell, then picked the same cell from a tray of choices.

They faded the prompts. At first the correct choice felt very different. Over trials that cue was slowly removed.

02

What they found

All three children got better at telling braille letters apart. Their accuracy rose in a clear stair-step line.

The gains came fast. Most kids reached near-perfect matching after only a few short sessions.

03

How this fits with other research

Sanders et al. (1989) showed that sighted preschoolers can learn identity matching with simple shapes. Toussaint moves that same logic to braille dots for children who cannot see.

Stoddard et al. (1967) found that letting kids first fail at hard circle-ellipse tasks, then backing up, created finer visual skills. Toussaint uses the same fade-in logic, but with tactile braille instead of circles.

McGrother et al. (1996) compared two ways to teach Chinese characters: tracing every stroke or pointing out the key feature. The feature method won. Toussaint’s fading is like the feature method: it highlights the key difference first, then removes the help.

04

Why it matters

If you teach braille, you now have a quick script. Run brief identity-matching trials, start with an easy cue, then fade it. No extra equipment is needed—just braille paper and a few blocks. The child touches, matches, and learns letters in days, not months.

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Pick three known braille letters, set up a tray with one target and two foils, and run ten identity-matching trials while slowly fading the tactile cue.

02At a glance

Intervention
prompting and fading
Design
single case other
Sample size
3
Population
other
Finding
positive
Magnitude
large

03Original abstract

We taught three children with visual impairments to make tactile discriminations of the braille alphabet within a matching-to-sample format. That is, we presented participants with a braille character as a sample stimulus, and they selected the matching stimulus from a three-comparison array. In order to minimize participant errors, we initially arranged braille characters into training sets in which there was a maximum difference in the number of dots comprising the target and nontarget comparison stimuli. As participants mastered these discriminations, we increased the similarity between target and nontarget comparisons (i.e., an approximation of stimulus fading). All three participants' accuracy systematically increased following the introduction of this identity-matching procedure.

Journal of Applied Behavior Analysis, 2017 · doi:10.1002/jaba.382