Introduction
Classification is the process of identifying an odd element from a given set. In this topic, students are provided with four figures, three of which share a common property, while one is different.
Explanation Step by Step
To solve classification problems, observe the visual elements closely. Look for patterns in structure, rotation, or quantity of elements within the figures.
Sub-topics
Figures
Key factors to consider while classifying figures:
- Number of lines or sides
- Position of internal symbols (dots, arrows, cross)
- Shaded vs Unshaded regions
- Symmetry (Vertical or Horizontal)
Examples
Example 1
Tricks and Shortcuts
Check the 'Degree of Rotation'. Many figures are just rotated versions of each other. The one that cannot be obtained by rotation is the odd one.
Common Mistakes
Focusing only on the size of the figure instead of its structural properties or internal orientation.
Practice Questions
Easy Questions
Medium Questions
Hard Questions
Revision Summary
Classification requires a logical approach to find similarities. Always verify the rule against at least three items in the set.
