Children simultaneously learn words through their phonological, morphological and orthographic knowledge. Children who are not taught this way have a disadvantage towards those that are. Children who do not understand morphology may struggle while reading complex words even though they understand them in their oral language. The morphological structure of words is correlated with vocabulary knowledge and reading comprehension. Students who do not understand morphology often end up with a limited vocabulary compared to other students who understand morphologically complex words. In 2008 little research had been done to help produce programs that would help children with morphology learning difficulties. Students with learning difficulties need different possibilities of learning and understanding morphology to help them further their reading, writing and comprehension.
Children may also have a disorder such as Dyslexia that makes it harder for them to understand morphology. Children with Dyslexia have a hard time distinguishing between words with different morphemes. Since morphemes have units of both sound and meaning this contributes to phonological confusion of similar sounding words and word parts. This causes children to fail to recognize the similarities in structure and fail to retrieve and store new words.