Dyslexia stems from differences in brain language areas and isn't merely about confusing letters like 'b' and 'd'. It's primarily about struggling to connect letters to sounds efficiently, impacting reading fluency and comprehension. Dyslexia exists on a continuum from mild to severe, and it often co-occurs with other conditions such as ADHD, dyscalculia, or dysgraphia.

Some students with dyslexia may have stronger verbal comprehension and reasoning skills, which can sometimes mask their reading difficulties, especially in the early grades. This is why a thorough evaluation that looks at underlying processing skills is so important.

Decades of scientific research confirm that dyslexia is a brain-based, language-processing disorder. It is not a problem with vision. The most effective teaching methods for students with dyslexia are known as Structured Literacy approaches. These approaches are systematic, cumulative, and explicit. They teach the structure of language, starting with the smallest units of sound (phonemes) and building from there.

The What Works Clearinghouse, run by the U.S. Department of Education, has found strong evidence for teaching young readers foundational skills explicitly. This includes providing systematic instruction in phonemic awareness, phonics, and fluency, which are the core components of interventions that help students with dyslexia learn to read.

A comprehensive evaluation for dyslexia should go far beyond just checking if your child can read a paragraph. It must investigate the underlying skills needed for reading. When you look at your child's evaluation report, check for assessments in these specific areas:

• Phonological Awareness: The ability to hear and manipulate sounds in spoken language (e.g., blending sounds to make a word, separating sounds in a word).
• Decoding: The ability to use letter-sound knowledge to accurately read unknown words.
• Reading Fluency: Measuring how quickly and accurately your child reads connected text.
• Reading Comprehension: Understanding the meaning of what is read.
• Spelling (Orthography): The ability to correctly sequence letters in words.
• Rapid Automatized Naming (RAN): The ability to quickly name a series of familiar items like letters, numbers, or objects. A slow speed can be a strong indicator of dyslexia.

A good evaluation also includes a review of your child's educational history, family history, and response to any previous reading help. It should paint a complete picture of your child as a learner.

When you receive school reports or a proposed IEP, be an active reader. Watch for vague language like 'reading below grade level' without explaining why. The evaluation should pinpoint the specific skill deficits, such as a weakness in phonological processing or decoding. If the report only shows scores for broad reading comprehension but doesn't include tests for the underlying skills listed above, the assessment may be incomplete.

In the IEP, watch for goals that are not specific or measurable. A goal like 'Jane will improve her reading' is not helpful. A better goal is 'Given a list of 20 CVC (consonant-vowel-consonant) words, Jane will decode 18 out of 20 words correctly in 4 out of 5 trials.' Also, be wary if the proposed intervention is simply 'extra help' or more time on a standard computer program. Students with dyslexia need specialized, structured, and explicit instruction, not just more of what isn't working.