Who Owns SDI? A Systems-Level Conversation with Dr. Tessie Bailey
🎙️ Episode Description
Who Owns SDI? A Systems-Level Conversation with Dr. Tessie Bailey
What happens when Specially Designed Instruction becomes more than just an IEP term—and starts becoming a shared responsibility across an entire school system?
In this powerful conversation, Bob Barrows sits down with Dr. Tessie Rose Bailey from the PROGRESS Center to examine SDI through four critical lenses: the special education administrator, building principal, instructional coach, and special education teacher.
Together, they unpack one of the biggest challenges in special education today: many educators still struggle to clearly define what SDI actually is—and what it is not.
The discussion explores:
* The difference between accommodations and SDI
* Why co-teaching often lacks intentional SDI planning
* How instructional coaches can strengthen implementation
* What principals should actually look for during walkthroughs
* Why progress monitoring must drive instructional decisions
* How “Beating the Odds” schools align every layer of the system around student success
Dr. Bailey also shares practical insights from her national work supporting schools through the PROGRESS Center, Lead IDEA Center, MTSS implementation, and instructional coaching systems.
Most importantly, this episode brings clarity back to the heart of special education:
“What is the impact of the disability, and what are we going to teach the student to reduce that impact?”
If you are a special education teacher, administrator, instructional coach, related service provider, or school leader, this episode will challenge and strengthen the way you think about SDI implementation.
🎧 Listen now and join the movement toward stronger instructional systems for students with disabilities.
#SpecialEducation #SDI #MTSS #InstructionalLeadership #Inclusion #SpecialEducationLeadership #TheGoldenTicket
🎙️ Show Notes
Who Owns SDI? A Systems-Level Conversation with Dr. Tessie Bailey
In this powerful systems-level conversation, Bob Barrows sits down with Dr. Tessie Bailey to explore one of the most misunderstood topics in special education today: Specially Designed Instruction (SDI).
Rather than discussing SDI from only the classroom perspective, this episode examines SDI through four critical lenses:
* Special Education Administrator
* Building Principal
* Instructional Coach
* Special Education Teacher
Together, Bob and Dr. Bailey unpack how each layer of the educational system either strengthens—or weakens—the implementation of high-quality SDI for students with disabilities.
This conversation moves beyond compliance and into what truly drives student outcomes: clarity, instructional alignment, collaboration, and intentional practice.
🔥 Key Themes Discussed
🔹 What SDI Actually Is
* Why many educators still struggle to define SDI clearly
* The difference between SDI, accommodations, and modifications
* Why SDI is not determined by location or staffing alone
🔹 The Two Questions That Clarify SDI
Dr. Bailey repeatedly returns to two critical questions:
“What is the impact of the disability?”
and
“What are we going to teach the student to reduce the impact of that disability?”
These two questions became the instructional backbone of the episode.
🔹 SDI Through Four Professional Lenses
🎯 Special Education Administrator
* Building district-wide clarity around SDI
* Providing role-specific professional development
* Supporting principals through proactive collaboration
* Moving beyond crisis management toward instructional leadership
🎯 Building Principal
* What principals should actually look for during classroom walkthroughs
* Why principals cannot identify SDI without first understanding the impact of the disability
* Structuring meaningful conversations with special education teachers
* Supporting co-teaching systems intentionally
🎯 Instructional Coach
* Helping teachers document, design, and implement SDI
* Using student data to refine instructional adaptations
* Coaching teachers through content, methodology, and delivery decisions
* Supporting long-term instructional planning instead of reactive instruction
🎯 Special Education Teacher
* Understanding the difference between teaching content and addressing the impact of the disability
* Designing intentional SDI within co-taught classrooms
* Supporting executive functioning and learner independence
* Why “special education is the long game”
🔥 Powerful Discussion Topics
✅ Co-Teaching Reframed
Dr. Bailey discusses the evolving “gold standard” of co-teaching and explains why the role of the special education teacher must remain intentionally connected to SDI—not simply classroom support.
✅ Accommodations vs SDI
One of the most impactful moments in the episode:
“Accommodations manage the disability. SDI addresses the disability.”
This distinction provides critical clarity for teachers, administrators, and IEP teams.
✅ MTSS and Special Education Alignment
The episode explores how modern MTSS systems should integrate—not separate—students with disabilities within tiered instructional systems.
✅ “Beating the Odds” Schools
Dr. Bailey shares insights from schools nationally where students with disabilities are performing at levels close to their peers without disabilities.
Common themes included:
* Clear leadership alignment
* Strong instructional coherence
* Intentional SDI implementation
* Shared understanding across all stakeholder groups
🔥 Signature Quotes from the Episode
“High-quality SDI happens when every layer of the system understands its role.” “Special education is the long game.” “Just because a special education teacher is delivering instruction does not mean it is SDI.” “We need to understand the impact of the disability before we can understand the instruction.” “Accommodations manage the disability. SDI addresses the disability.”
🔥 Resources Mentioned
🌐 PROGRESS Center
Promoting progress for students with disabilities through instructional systems and SDI implementation.
🌐 Lead IDEA Center
Supporting principals and educational leaders in understanding their role in special education implementation.
🌐 International MTSS Association
Focused on building clarity and alignment around MTSS implementation nationwide.
🔥 Final Reflection
One of the strongest takeaways from this conversation is that SDI cannot rest solely on the shoulders of special education teachers.
When special education directors, principals, instructional coaches, and teachers operate with shared clarity and purpose, students experience stronger instruction, greater belonging, and better outcomes.
This episode is a reminder that:
SDI is strengthened—or weakened—by every layer of the sy...