# Sets and subsets

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### The Real Number System - Always, Sometimes, or Never Card Sort

This card sort activity has students categorize 24 statements about the Real Number System as Always True, Sometimes True, and Never True. The statements relate to the different types of numbers in the Real Number System: Real, Irrational, Rational, Integer, Whole, and Natural. 8.2A Extend previous knowledge of sets and subsets using a visual representation to describe relationships between sets of real numbers

give students a family history (description of their shape) and have students draw in their "self portrait" on the family tree

### Real Number System Quadash Math Game: A Fun Way to Practice Identifying Number Sets and Subsets

Real Number System Quadash Math Game: A Fun Way to Practice with Number Sets and Subsets by NerdintheBrain

A Venn diagram represents the sets and subsets of different types of triangles. For example, the set of acute triangles contains the subset of equilateral triangles, because all equilateral triangles are acute. The set of isosceles triangles partly overlaps with that of acute triangles, because some, but not all, isosceles triangles are acute.

### The Real Number System - Always, Sometimes, or Never Card Sort

This card sort activity has students categorize 24 statements about the Real Number System as Always True, Sometimes True, and Never True. The statements relate to the different types of numbers in the Real Number System: Real, Irrational, Rational, Integer, Whole, and Natural. 8.2A Extend previous knowledge of sets and subsets using a visual representation to describe relationships between sets of real numbers

Sets and subsets

### Sets and Subsets of Real Numbers

Students are presented with multiple opportunities and approaches to practice classifying and analyzing the relationship between sets and subsets of real numbers in this 3 page activity.

TEKS 5.5 Behavior: Categorize two-dimensional figures in a hierarchy of sets and subsets. Condition: The students will create classify two-dimensional shapes in a ladder of sets and subsets using graphic organizers based on their attributes and properties. Future use: I would use this in my future classroom as a student assessment of knowledge, or even a guided practice before and assessment of knowledge.