All About Sets
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Objective
I can define a set and use set notation to represent sets and subsets.
Part 1 of 4
Warm-up video
Professor Dave Explains · 6:22Vetted channel
We don't generate video — this one is by Professor Dave Explains on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
The intersection of two sets includes all the items that are common to both sets, while the union of two sets is the merging of the sets.
- 2
An open interval does not include the end points, while a closed interval includes the end points.
- 3
The null set or empty set is a set that contains no elements.
Part 3 of 4
Practice
7 questions
Which of the following notations indicates that the endpoint is NOT included in the set?
Express the set of all real numbers less than or equal to 5 using interval notation.
Part 4 of 4
Exit ticket
Quick comprehension check
“Given set A = {2, 4, 6, 8, 10} and set B = {3, 6, 9, 12}, what is A ∩ B (the intersection of A and B)?”
Sample answer included in the free materials
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