Data Science for Young Minds — Grade 3
| Topic | Details |
|---|---|
| What a bar chart is | What a bar chart is: bars showing amounts for each category |
| Parts of a bar chart | Parts of a bar chart: title, axes, labels, bars |
| When to use bar charts | When to use bar charts: comparing categories |
| Activity | Activity: build a bar chart from your frequency table |
| What a pictograph is | What a pictograph is: using pictures to show amounts |
| What a key is | What a key is: each picture = a certain number |
| When pictographs work well and when they | When pictographs work well and when they do not |
| Activity | Activity: create a pictograph using stickers or stamps |
| What a dot plot is | What a dot plot is: dots stacked above a number line |
| When to use dot plots | When to use dot plots: showing distribution of numbers |
| How dot plots reveal clusters, gaps, and | How dot plots reveal clusters, gaps, and outliers |
| Reading a dot plot | Reading a dot plot: what does the shape tell you? |
| Bar charts for comparing categories | Bar charts for comparing categories |
| Pictographs for simple, visual displays | Pictographs for simple, visual displays |
| Dot plots for showing number distributio | Dot plots for showing number distributions |
| How to decide | How to decide: what question are you trying to answer? |
Learn what bar charts are, when to use them, and build one by hand with your real survey data.
Create pictographs where pictures represent data. Learn why a clear key is essential.
Learn to create dot plots that show how data is distributed along a number line.
Different data needs different graphs. Learn to pick the one that tells your story best.