Because schools often use color - coded teaching tools, especially in the early grades, parents and teachers may mistakenly think that a child has a learning disability when, in fact, he may have a color - vision deficiency.
Karena sekolah - sekolah sering menggunakan alat bantu ajar yang diberi warna, khususnya di taman kanak - kanak, banyak orang tua dan guru keliru mengira seorang anak menderita ketidaksanggupan belajar, padahal anak itu mungkin buta warna.