Representing data in pictographs and column graphs
"Let's think it through," says Ollie. "When we collect data, a graph helps us see the answer. In a column graph, taller columns mean more."
1. The friends counted creatures by the creek: frogs 8, lizards 6, dragonflies 12, birds 10. Each picture = 2 creatures. How many pictures for each?
| Creature | Number of pictures |
|---|---|
| Frogs | |
| Lizards | |
| Dragonflies | |
| Birds |
2. Draw a column graph of the data above. Label the axes and give it a title. (Use a scale where each square = 2 creatures.)
3. Which creature was seen most? How many more dragonflies than lizards?
4. How many creatures were counted altogether?
5. Ollie asks: write one true thing the graph tells us about the creek.