Bridges Intervention – Volume 4 Addition & Subtraction Problem Situations Within 100 This resource provides clear, student-friendly Learning Intentions and Success Criteria for all 45 sessions of Bridges Intervention Volume 4. Designed to support: • MTSS Tier 2 and Tier 3 intervention • Small group instruction • Progress monitoring • Clear math discourse • Problem-type understanding Volume 4 focuses on: • Addition and subtraction problem situations within 20 and within 100 • Add To / Take