: Identifying if an object is an element of a specific group.

: Organizing objects by traits (e.g., animals -> mammals -> cats). 4. Combinatorics Basic counting principles for different variations.

: Solving puzzles based on conditions (e.g., "The fruit is red AND round"). Negation : Using "NOT" to define sets or properties. 3. Graphs and Trees

: Finding the shortest or most efficient route between points.

: Visualizing all possible combinations of items (like choosing an outfit from 2 shirts and 3 pants).

This section focuses on the relationship between groups of objects.

: Recognizing when one set is entirely contained within another.

These topics introduce visual ways to represent connections and hierarchies.