Every day in classrooms throughout the country one can find children experiencing visual discrimination problems. One can also find a massive amount of teaching effort directed towards correcting those same problems, too often with limited success. Recent research has raised many questions about the usefulness of the most popular commercially available training materials (i.e. Frostig, Kephart, Michigan Tracking). However, research has also identified useful techniques that classroom teachers might employ.
Allington, R. (1975). Using Visual Highlighting to Teach Discriminations and Patterns. Reading Horizons: A Journal of Literacy and Language Arts, 15 (4). Retrieved from https://scholarworks.wmich.edu/reading_horizons/vol15/iss4/6