Describe events as subsets of a sample space

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Lesson Plan →Objectives, pacing and practice, built from this lesson's brief.
Guided Notes →One page your students fill in and keep.
Exit Ticket →Three items at the end of class. No student accounts.
Re-teach →After an exit ticket: who missed what, and what to do tomorrow.
Homework →Assign practice; it grades itself.

HSS.CP.A.1

**HSS.CP.A.1**: Describe events as subsets of a sample space (the set of outcomes) using characteristics (or categories) of the outcomes, or as unions, intersections, or complements of other events ("or," "and," "not").

HSS.CP.A.1: Describe events as subsets of a sample space (the set of outcomes) using characteristics (or categories) of the outcomes, or as unions, intersections, or complements of other events ("or," "and," "not").

What you'll learn

Define the sample space as the set of all possible outcomes of an experiment and identify an event as a subset of that sample space
Describe an event both by a characteristic or category of its outcomes ("an even number") and by listing its outcomes in roster/set notation ({2, 4, 6})
Form and interpret the union (A or B), intersection (A and B), and complement (not A) of events, translating fluently between set notation and everyday "or / and / not" language
Represent events and their combinations using Venn diagrams and roster lists
Translate everyday descriptions of events into formal set-operation expressions and back

Slides

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Events as subsets

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Complement and combining

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Practice

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Exercise

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