Which Ones Belong Together? | Fractions Inquiry Task

Move beyond “The Right Answer” and start building "The Right Reasoning."
Tired of math routines that only have one correct path? WOBT: Which Ones Belong Together? is a high-engagement, inquiry-based strategy designed by a Math Instructional Coach to transform how students analyze numbers.

This free sample focuses on Fractions (Level 1), challenging students to look past the surface and find the “math secrets” that connect different items.

What is the WOBT Strategy?
WOBT is a classification routine where students analyze a 2x4 grid of mathematical items. Instead of finding the “odd one out,” they must:

Select a group of items that share a common attribute.
Name their group with a creative “Family Title.”
Justify their reasoning by explaining the mathematical connection.

What’s Included in this Free Download?
Teacher Implementation Guide: A concise walkthrough of the WOBT routine, including facilitation tips for sparking classroom discourse.
Ready-to-Use Fraction Set: A professional 2x4 grid featuring fractions designed to prompt diverse groupings (equivalent fractions, proper vs. improper, even denominators, etc.).
The “Packing Box” Student Worksheet: A unique, branded recording sheet that guides students through the thinking process.
Sample Answer Key: Examples of multiple valid groupings to help you model high-level mathematical justification.

Why Teachers Love WOBT:
Low Floor, High Ceiling: Every student can find a connection, but the depth of the “math secret” can be scaled for advanced learners.
No Prep: Perfect for a “Math Talk” bell-ringer, a collaborative center activity, or a quick formative assessment.
CCSS & IB PYP Aligned: Focuses heavily on MP3 (Constructing viable arguments) and MP6 (Attending to precision).

Let’s Stay Connected!
I’m Samia Henaine, founder of Math Bridge Builders. I’m dedicated to helping teachers empower students to own their learning.

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