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What is Tier 3 in Response to Intervention (RTI) / Multi Tiered System of Supports (MTSS)

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Published on

October 28, 2019

Last updated

June 26, 2025

What is Tier 3 in Response to Intervention (RTI) / Multi Tiered System of Supports (MTSS)-featured-image

    Students who have not demonstrated progress with targeted group interventions at Tier 2 require more time in more intensive interventions. Tier 3 interventions are distinguished from Tier 2 interventions because they are individualized based on data collected in individual problem solving, occur with smaller student-teacher ratios (e.g., ideally 1-on-1, however, groups of 3 to 5 students or a larger group broken into a few groups of 3-5 students, is acceptable for middle and high schools), and possibly occur for a longer duration of time (e.g., more daily minutes or more weeks spent in intervention). About 5-10% of students will require this level of intensive support. 

    Tier 3 intervention plans include more than what occurs during intervention time. They also include strategies for maximizing student outcomes during core instruction or Tier 1, as well as supports to use at home or in the community. These students should be observed on Branching Minds, where a collaborative intervention plan is developed, monitored, and documented.

    Tier 3 in Response to Intervention

    Example summary of Response to Intervention (RTI)/ Multi Tiered System of Supports (MTSS) model for elementary schools


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    About the author

    Branching Minds

    Branching Minds is a highly respected K-12 services and technology company that leverages the learning sciences and technology to help districts effectively personalize learning through enhancements to their MTSS/RTI practice. Having worked with hundreds of districts across the country, we bring deep expertise in learning sciences, data management and analysis, software design, coaching, and collaboration. Combined with our extensive toolkit of resources, PD, and technology, we provide a system-level solution. We are more than a service or a software provider, we are partners who will deliver sustainable results for educators, and a path to success for every learner.

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