[Deutsch] Arabische Formwechsel-Buchstaben

# The Arabic Shape-Shifting Letters: Why Your Child Needs Special Help [German content summary] Arabic's 28 letters each transform into 4 different shapes based on word position (isolated, initial, medial, final), creating over 100 unique letter forms — versus 26 static letters in English. This is a fundamentally different cognitive challenge. Cognitive load theory shows that presenting all forms simultaneously overloads working memory. Sequential introduction with contextual anchors (words containing each form) reduces cognitive load while creating quadruple encoding for stronger memory. Thurayya implements this progressive approach.