Spatial reasoning
Rotate. Do not mirror.
Mental rotation tasks become easier when you track orientation instead of treating mirrored shapes as rotated shapes.
Quick answer
The key idea
A rotated shape keeps its internal left-right relationships. A mirrored shape reverses them.
How to check
1
Choose a corner or marker.
2
Track where it moves after rotation.
3
Check left-right relationships.
4
Reject the option that flips the shape.
What this trains
Spatial reasoning
Visualization
Feature tracking
Careful comparison
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Train spatial reasoning
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