# Math Curriculum

## Level DUnit: Statistics and ProbabilityKey Lesson 7.8.3 What Are Probabilities?

Lesson topic: Probability

## Instructor Materials

• Teacher guide
• Slides
• Practice Problems resource
• CCRS standard: 7.SP.5, 7.SP.6, 7.SP.7, 7.SP.7a
• Learning goal: Generalize (orally) the relationship between the probability of an event and the number of possible outcomes in the sample space, for an experiment in which each outcome in the sample space is equally likely. List (in writing) the sample space of a simple chance experiment. Use the sample space to determine the probability of an event, and express it as a fraction, decimal, or percentage.
• 7.8 Assessment and Practice Problems

## Related Lessons

### Preparation

If students need additional lessons before this key lesson, use these supplemental lessons.

Used with permission:

1. IM K-5 Math was originally developed by Open Up Resources (OUR) and authored by Illustrative Mathematics® (IM), and is copyrighted 2017-2019 by Open Up Resources. It is licensed under the Creative Commons Attribution 4.0 International License (CC BY 4.0). OUR's K-5 Math Curriculum is available at https://openupresources.org/math-curriculum/.