Proportional Reasoning Intervention | Ratio & Unit Rate Diagnostic System | Mult
What This Is
A complete, research-aligned proportional reasoning intervention system designed to rebuild multiplicative thinking before formal proportion procedures are introduced.
Who This Is For
• Students relying on additive reasoning • Struggling ratio and unit rate learners • Pre-algebra readiness gaps • Tier 2 & Tier 3 math intervention
What’s Included
Instructor Playbook
Strategy Screener
Scoring & Interpretation Guide
Concept Cards
Strategy Templates
Skill Builders (Levels 1–3)
Core Labs + Challenge Lab
Error Analysis Cards
Progress Monitoring Tracker
Post Assessment + Growth Interpretation Guide
What Makes This Different
This system builds structural reasoning before procedural proportion solving. Students learn to identify scale factors, use unit rate strategically, and justify reasoning — reducing fragile memorization patterns.
What’s Included in This System
This complete proportional reasoning intervention includes:
• Instructor Playbook (Implementation Path + instructional framework) • Diagnostic Strategy Screener • Scoring & Growth Interpretation Guide • Concept Cards for explicit modeling • Strategy Templates & Problem-Solving Mats • Skill Builders – Level 1 (Scale Factors) • Skill Builders – Level 2 (Unit Rate Development) • Skill Builders – Level 3 (Structural Application) • Core Ratio & Unit Rate Labs • Challenge Lab for transfer & complexity • Error Analysis Cards • Progress Monitoring Tracker • Post Assessment • Post Assessment Answer Key & Growth Interpretation Guide
This is a complete instructional system — not a worksheet packet.
FORMATS & PRINTING
Formats & Printing Information
• PDF format • Printable (black & white friendly) • Designed for standard 8.5 x 11 printing • Can be used digitally with annotation tools (Google Slides, Kami, etc.) • Concept Cards may be printed and laminated for repeated instructional use
No editable files are included.
COPYRIGHT & USAGE
Copyright & Usage Terms
© 2026 Susan Ardila | MindBridge™ Math Mastery All rights reserved.
This resource is licensed for use by a single educator or classroom.
You may: • Print copies for students you directly teach • Use digitally within your own classroom or intervention setting
You may not: • Share with colleagues • Upload to shared drives • Post online (including Google Drive, school LMS, or websites) • Resell, redistribute, or modify for commercial use
If additional licenses are needed, please purchase additional copies.
Unauthorized distribution is a violation of copyright law.
FAQ
Frequently Asked Questions
What grade level is this designed for? Grades 5–8. It is especially effective for students entering pre-algebra who lack multiplicative reasoning fluency.
Is this aligned to standards? Yes. This system addresses ratio, rate, scale factor, and proportional reasoning standards commonly found in Grades 6–8.
Can this be used in small groups? Yes. It is ideal for Tier 2, Tier 3, intervention blocks, and specialized tutoring settings.
Is this a full curriculum? No. It is an intervention system designed to rebuild proportional reasoning foundations before formal proportion procedures.
IMPLEMENTATION NOTES
Implementation Notes
This system is designed to be implemented sequentially:
Administer Screener
Develop multiplicative thinking (Level 1 Skill Builders)
Anchor unit rate reasoning (Level 2 Skill Builders)
Apply through structured labs
Monitor growth and administer post assessment
Do not skip foundational levels. Structural fluency must precede formal proportion solving.
REFUND POLICY
Refund Policy
Due to the digital nature of this product, all sales are final. If you experience technical issues accessing files, please contact support for assistance.

