Specially Designed Instruction (SDI)
Instruction that has been adapted in content, methodology, or delivery to address the unique needs of your child. This is the core of what makes special education "special."
Related Terms
Special Education
Specially designed instruction, at no cost to parents, to meet the unique needs of a child with a disability. This can include instruction in the classroom, at home, in hospitals, or other settings.
Individualized Education Program (IEP)
A written plan created for your child that describes their current abilities, sets learning goals, and lists the special education services they will receive. It's a legal document that the school must follow.
Accommodations
Changes in how your child learns or is tested that don't change what they learn. Examples include extra time on tests, preferential seating, audio books, or having instructions read aloud.
Modifications
Changes to what your child is expected to learn or demonstrate. Unlike accommodations, modifications change the content or expectations. Examples include a simplified reading level or fewer homework problems.
SDI in context
Specially Designed Instruction comes up across the IEP process — in your IEP document, during meeting prep, and in the federal rights that protect your child. IEP Ally explains where it shows up and what to do about it.
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Upload Your IEP — Free →This glossary is provided for informational purposes only and does not constitute legal advice. Definitions are simplified for parent-friendly understanding and may not reflect the full legal text. Consult a qualified attorney or advocate for advice about your specific situation.