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Untangling Data-Based Decision Making

A Problem-Solving Model to Enhance MTSS

Learn how to use a problem-solving model to easily make sense of student data, enabling teams to effectively drive instruction and plan appropriate responses within a multitiered system of supports (MTSS).


  • Understand the proper application of data-based decision making
  • Successfully utilize data to improve student learning
  • Use worksheets and tools to organize data team meetings
  • Become data rich and information rich
  • Develop an MTSS within their school or district

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Untangling Data-Based Decision Making

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Chapter 1: Overview of Multitiered System of Supports
Chapter 2: Defining Data-Based Decision Making
Chapter 3: Data-Based Decision Making at the Schoolwide Level
Chapter 4: Data-Based Decision Making at Tier 1
Chapter 5: Data-Based Decision Making at Tier 2 for Groups of Students
Chapter 6: Data-Based Decision Making at Tier 3 for Individual Students



Chapter 1

Chapter 2

Chapter 3

Chapter 4

Chapter 5

Chapter 6



  • DuFour, R., DuFour, R., Eaker, R., Many, T. W., & Mattos, M. (2016). Learning by doing: A handbook for Professional Learning Communities at Work (3rd ed.). Bloomington, IN: Solution Tree Press.
  • Harlacher, J. E., & Whitcomb, S. A. (2022). Bolstering student resilience: Creating a classroom with consistency, connection, and compassion. Bloomington, IN: Marzano Resources.
  • Marzano, R. J. (2018). Making classroom assessments reliable and valid. Bloomington, IN: Solution Tree Press.