Reasoning · Grade 2-1 Attributes and Reasoning
Problem
The reference is circle, striped, large, so the answer must reverse all three.
Listing the three attributes of one shape first gives us a clear checklist to compare every choice against.
1.G.A.1Make A Systematic List㉠ differs in shape and pattern but matches on size, so it is out.
One shared attribute (same large size) is enough to rule a choice out.
1.G.A.1Eliminate Possibilities㉡ is triangle, plain, small — all three differ.
When shape, pattern, and size all disagree with the reference, the choice shares nothing with it — exactly what we want.
1.G.A.1Make A Systematic List㉢ matches the pattern and ㉣ the shape, so ㉡ is the only answer.
Confirming the other two each share at least one attribute proves ㉡ is the unique answer.
1.G.A.1Eliminate PossibilitiesChecking all four choices leaves exactly one that shares nothing with the reference card.
A choice needs only one attribute in common with the reference to fail the condition, so a single match is enough to cross it out.
Once the other three have each been crossed out for a definite reason, the one still standing has to be the answer.
To be different in every way, a shape must lose its match on shape, pattern, AND size — just one matching attribute knocks it out!