Data Science for Young Minds — Grade 3
| Topic | Details |
|---|---|
| What 'average' means in everyday languag | What 'average' means in everyday language vs. math |
| How to calculate the mean | How to calculate the mean: add all values, divide by how many |
| What the mean tells you | What the mean tells you: a typical or central value |
| Practice | Practice: calculate the mean of 5 different datasets |
| How one extreme value changes the mean d | How one extreme value changes the mean dramatically |
| The billionaire in the room | The billionaire in the room: why average income is misleading |
| When the mean does not represent most pe | When the mean does not represent most people |
| Introduction to median | Introduction to median: the middle value |
| Using the mean to compare two classes, t | Using the mean to compare two classes, teams, or groups |
| When is a difference meaningful vs. too | When is a difference meaningful vs. too small to matter? |
| Fair comparisons | Fair comparisons: same measurement, same conditions |
| Activity | Activity: compare class averages for 3 different measurements |
| Batting averages in sports | Batting averages in sports |
| Average temperature and weather | Average temperature and weather |
| Grade point averages (GPA) in school | Grade point averages (GPA) in school |
| When advertisers use averages to mislead | When advertisers use averages to mislead |
Learn what the mean is, how to calculate it, and what it tells you about a group.
Discover how extreme values (outliers) can pull the mean away from what is truly typical.
Use the mean to compare two groups fairly. Learn what a meaningful difference looks like.
Explore how averages are used (and misused) in sports, school, weather, and daily life.