The MTSS Promise
In well-implemented MTSS, no student falls through the cracks. Universal screening identifies struggling students. Tiered interventions match support to need. Progress monitoring confirms whether interventions work. The system ensures every student receives what they need to succeed.
Mrs. Franklin noticed Aiden struggling in third-grade reading—but he wasn't struggling enough to qualify for special education. In schools without intervention systems, students like Aiden fall into a gap: not severely behind enough for services, but not receiving sufficient help through regular instruction alone.
Multi-tiered systems of support close this gap. Instead of waiting for students to fail before providing help, MTSS proactively identifies struggling students and provides increasingly intensive support until they succeed.
The Three-Tier Framework
Tier 1: Core Instruction (All Students)
High-quality, evidence-based instruction for all students in the general education classroom. Should meet the needs of approximately 80% of students. Universal screening identifies students who need more.
Tier 2: Targeted Intervention (Some Students)
Additional small-group intervention for students who need more than core instruction. Typically 15-20% of students. More frequent progress monitoring (every 2-4 weeks). Standard intervention protocols.
Tier 3: Intensive Intervention (Few Students)
Individualized, intensive support for students with significant needs. Typically 5% of students. Weekly progress monitoring. May include special education evaluation if interventions aren't working.
Tier 1: Getting Core Instruction Right
Tier 1 is the foundation. If core instruction isn't effective, schools face overwhelming Tier 2/3 demands they can't meet.
Evidence-Based Practices
Core instruction should use practices with research evidence of effectiveness. In reading, this means explicit phonics instruction, vocabulary development, comprehension strategies, and fluency practice. In math, this means conceptual understanding, procedural fluency, and problem-solving.
Differentiation
Within Tier 1, teachers differentiate to meet diverse needs: flexible grouping, scaffolded instruction, varied assignments based on readiness. Good Tier 1 reduces the number of students needing Tier 2.
Universal Screening
Screen all students periodically (typically fall, winter, spring) to identify those at risk. Don't wait for failure—identify struggling students early and intervene before gaps widen.
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Tier 2: Targeted Intervention
Characteristics of Tier 2
- • Small group (typically 3-6 students)
- • Supplemental to (not replacement for) core instruction
- • Standardized intervention protocols
- • Usually 20-40 minutes, 3-5 times per week
- • Progress monitoring every 2-4 weeks
- • Typically 8-12 week cycles
Matching Intervention to Need
Diagnostic assessment identifies specific skill gaps. A student struggling with reading comprehension due to decoding difficulties needs phonics intervention, not comprehension strategies. Precise diagnosis enables precise intervention.
Evidence-Based Interventions
Tier 2 interventions should have research support. Resources like the What Works Clearinghouse, Best Evidence Encyclopedia, and Intervention Central identify programs with evidence of effectiveness.
Fidelity of Implementation
Intervention programs only work when implemented as designed. Train interventionists, monitor implementation fidelity, and ensure interventions are delivered correctly before concluding they don't work.
Tier 3: Intensive Intervention
Characteristics of Tier 3
- • Very small group or individual (1-3 students)
- • Significantly more time and intensity
- • Individualized based on student need
- • Weekly progress monitoring
- • May require specialized interventionist
- • Often longer duration interventions
When Tier 2 Isn't Enough
Students move to Tier 3 when Tier 2 intervention, implemented with fidelity, doesn't produce adequate progress. This might mean more intensive versions of Tier 2 interventions, different intervention approaches, or more individualized instruction.
Special Education Connection
MTSS is not the same as special education, but they connect. Students who don't respond to intensive Tier 3 intervention may be referred for special education evaluation. MTSS data documents intervention response, informing eligibility decisions.
Tier Comparison
| Element | Tier 1 | Tier 2 | Tier 3 |
|---|---|---|---|
| Students | All (100%) | Some (15-20%) | Few (5%) |
| Setting | General classroom | Small group | Very small/individual |
| Frequency | Daily core | 3-5x/week add'l | Daily intensive |
| Progress Monitoring | 3x/year screening | Every 2-4 weeks | Weekly |
| Approach | Evidence-based core | Standard protocols | Individualized |
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Progress Monitoring and Decision Making
Setting Goals
Intervention should have clear goals: What level of performance do we expect? By when? Goals enable judgment about whether intervention is working.
Monitoring Progress
Regular assessment shows whether students are making adequate progress toward goals. Plot progress on graphs to visualize trends. Compare growth to expected trajectory.
Decision Rules
Establish clear rules for decisions: How many data points below the goal line before intervention is changed? What rate of progress indicates success? Clear decision rules prevent students from languishing in ineffective interventions.
Data Teams
Regular team meetings review intervention data, make decisions about students, and problem-solve when interventions aren't working. Data alone doesn't improve outcomes—humans interpreting and acting on data do.
Implementation Essentials
Scheduling
Intervention requires time. Build intervention blocks into the master schedule. Protect intervention time from interruption. Ensure students don't miss core instruction for intervention.
Staffing
Who delivers intervention? Options include classroom teachers during intervention blocks, intervention specialists, instructional aides with training, or tutors. Consider expertise, availability, and cost.
Materials
Evidence-based intervention programs often require specific materials. Budget for curriculum, assessment tools, and progress monitoring instruments.
Training
Interventionists need training in specific programs they'll use. Ongoing coaching ensures fidelity. Professional development in data interpretation enables good decisions.
Aiden's Intervention Journey
Return to Aiden, the third-grader struggling in reading. In a well-functioning MTSS:
Universal screening in fall identifies him as at-risk. Diagnostic assessment reveals he can decode but struggles with vocabulary and comprehension. He enters Tier 2 vocabulary intervention—20 minutes daily in a group of four students.
Progress monitoring every two weeks shows slow growth. After six weeks below trajectory, the team adds comprehension strategy instruction. Progress improves. After 12 weeks, Aiden's reading scores approach grade level. He returns to Tier 1 with continued monitoring.
Without MTSS, Aiden might have continued struggling, falling further behind each year. With MTSS, he got help quickly, the intervention was adjusted when needed, and he closed the gap before it became insurmountable.
This is what MTSS makes possible: no student falling through the cracks, intervention matched to need, support intensified when necessary. It's not magic—it's systematic, data-driven support for every student.
Key Takeaways
- MTSS provides three tiers of support: universal instruction for all, targeted intervention for some, intensive support for few.
- Strong Tier 1 is foundational—without effective core instruction, Tier 2/3 demands become overwhelming.
- Progress monitoring and data-driven decisions ensure interventions work—and change when they don't.
- Implementation requires scheduling, staffing, materials, and training—MTSS isn't just a framework but a commitment of resources.
Dr. Emily Rodriguez
Director of Student Support Services
Expert in student intervention strategies with a focus on early warning systems and MTSS implementation.



